diff --git a/docs/source/project_structure.md b/docs/source/project_structure.md
index 0a0fa03..39a6974 100644
--- a/docs/source/project_structure.md
+++ b/docs/source/project_structure.md
@@ -51,7 +51,7 @@ oceanarray/
 │   │   ├── helpers.py             # Shared colormap/style helpers
 │   │   └── _cli_legacy.py         # Legacy CLI plots (pending `oceanarray plot <file>` redesign)
 │   │
-│   ├── report/                    # [report] HTML report generation
+│   ├── reports/                   # [report] HTML report generation
 │   │   ├── __init__.py            # Public entry-points (MooringReport, etc.)
 │   │   ├── _mooring.py            # Mooring summary template + MooringReport orchestrator
 │   │   ├── _instrument.py         # Per-instrument report ({mooring}_{serial}_report.html)
@@ -172,7 +172,7 @@ Three-tier architecture (see `.claude/plotters_update-20260718.md` for the rules
 - **Tier 1** (`plotters/primitives.py`): low-level axes primitives, no domain knowledge
 - **Tier 2** (`plotters/current.py`, `timeseries.py`, `hydrography.py`, etc.): domain
   functions that know about oceanographic variables
-- **Tier 3** (`report/_plots.py`): report wrappers that call Tier-2 functions and return
+- **Tier 3** (`reports/_plots.py`): report wrappers that call Tier-2 functions and return
   base64 PNG strings for embedding in HTML
 
 ---
@@ -183,13 +183,13 @@ Report types, each in its own module:
 
 | Report | Module | Output file |
 |--------|--------|-------------|
-| Mooring summary | `report/_mooring.py` | `{mooring}_report.html` |
-| Per-instrument | `report/_instrument.py` | `{mooring}_{serial}_report.html` |
-| Stack | `report/_stack.py` | `{mooring}_stack_report.html` |
-| Grid | `report/_grid.py` | `{mooring}_grid_report.html` |
-| Array | `report/_array.py` | `{array}_array_report.html` |
+| Mooring summary | `reports/_mooring.py` | `{mooring}_report.html` |
+| Per-instrument | `reports/_instrument.py` | `{mooring}_{serial}_report.html` |
+| Stack | `reports/_stack.py` | `{mooring}_stack_report.html` |
+| Grid | `reports/_grid.py` | `{mooring}_grid_report.html` |
+| Array | `reports/_array.py` | `{array}_array_report.html` |
 
-All figures are generated by `report/_plots.py` (Tier 3) and embedded as base64 PNGs.
+All figures are generated by `reports/_plots.py` (Tier 3) and embedded as base64 PNGs.
 
 ---
 
diff --git a/oceanarray/cli.py b/oceanarray/cli.py
index 5eab7b6..832a956 100644
--- a/oceanarray/cli.py
+++ b/oceanarray/cli.py
@@ -345,7 +345,7 @@ def cmd_report(args: argparse.Namespace) -> int:
             return 0
 
         if getattr(args, "array", False):
-            from .report._array import generate_array_report
+            from .reports._array import generate_array_report
 
             if getattr(args, "pdf", False) or getattr(args, "all_reports", False):
                 _status(
@@ -366,7 +366,7 @@ def cmd_report(args: argparse.Namespace) -> int:
             )
             return 0 if result else 1
 
-        from .report import MooringReport
+        from .reports import MooringReport
 
         _status("section", f"Report: {args.mooring}")
         serials = getattr(args, "serial", None)
@@ -387,7 +387,7 @@ def cmd_report(args: argparse.Namespace) -> int:
             stack=all_reports or args.stack,
         )
         if getattr(args, "cruise_table", False):
-            from .report._recovery_table import generate_recovery_table
+            from .reports._recovery_table import generate_recovery_table
 
             mooring_proc = proc_root / args.mooring
             out_dir = Path(
@@ -401,7 +401,7 @@ def cmd_report(args: argparse.Namespace) -> int:
                 force=args.force,
             )
         if getattr(args, "pdf", False) or all_reports:
-            from .report import combine_mooring_pdf
+            from .reports import combine_mooring_pdf
 
             # Combine reads the same directory generate() wrote to; both resolve it
             # through paths.resolve_report_dir so they can never drift.
diff --git a/oceanarray/paths.py b/oceanarray/paths.py
index ecf6c20..9f84b44 100644
--- a/oceanarray/paths.py
+++ b/oceanarray/paths.py
@@ -48,7 +48,7 @@ def resolve_report_dir(
     """Return the directory a mooring's HTML report pages are written to.
 
     Single source of truth for report output-dir resolution, mirrored by both
-    :meth:`oceanarray.report.MooringReport.generate` and the PDF combiner so the
+    :meth:`oceanarray.reports.MooringReport.generate` and the PDF combiner so the
     two never drift.  Priority: explicit *outdir* wins; otherwise a central
     *report_dir* nests each mooring under ``report_dir/<mooring>``; otherwise the
     default ``proc_root/<mooring>/report``.
diff --git a/oceanarray/plotters/current.py b/oceanarray/plotters/current.py
index 3f1ab9e..5c9587c 100644
--- a/oceanarray/plotters/current.py
+++ b/oceanarray/plotters/current.py
@@ -1506,7 +1506,7 @@ def draw_adcp_hodograph(
     label_far = f"{float(range_vals[i_far]):.0f} m range"
     label_near = f"{float(range_vals[i_near]):.0f} m range"
 
-    from oceanarray.report._plots import _draw_hodograph_pair
+    from oceanarray.reports._plots import _draw_hodograph_pair
 
     fig, axes = plt.subplots(2, 2, figsize=(params.W_FULL, 9))
     fig.subplots_adjust(hspace=0.55, wspace=0.45)
diff --git a/oceanarray/plotters/timeseries.py b/oceanarray/plotters/timeseries.py
index abc3d50..2d0d852 100644
--- a/oceanarray/plotters/timeseries.py
+++ b/oceanarray/plotters/timeseries.py
@@ -255,7 +255,7 @@ def draw_grid_velocity_stacked(ds: "xr.Dataset") -> "Optional[plt.Figure]":
 
     """
     import matplotlib.pyplot as plt
-    from ..report._plots import _velocity_panel_style
+    from ..reports._plots import _velocity_panel_style
 
     vel_vars = [
         "east_velocity",
diff --git a/oceanarray/report/__init__.py b/oceanarray/reports/__init__.py
similarity index 100%
rename from oceanarray/report/__init__.py
rename to oceanarray/reports/__init__.py
diff --git a/oceanarray/report/_array.py b/oceanarray/reports/_array.py
similarity index 100%
rename from oceanarray/report/_array.py
rename to oceanarray/reports/_array.py
diff --git a/oceanarray/report/_css.py b/oceanarray/reports/_css.py
similarity index 100%
rename from oceanarray/report/_css.py
rename to oceanarray/reports/_css.py
diff --git a/oceanarray/report/_encode.py b/oceanarray/reports/_encode.py
similarity index 100%
rename from oceanarray/report/_encode.py
rename to oceanarray/reports/_encode.py
diff --git a/oceanarray/report/_grid.py b/oceanarray/reports/_grid.py
similarity index 100%
rename from oceanarray/report/_grid.py
rename to oceanarray/reports/_grid.py
diff --git a/oceanarray/report/_html_helpers.py b/oceanarray/reports/_html_helpers.py
similarity index 100%
rename from oceanarray/report/_html_helpers.py
rename to oceanarray/reports/_html_helpers.py
diff --git a/oceanarray/report/_instrument.py b/oceanarray/reports/_instrument.py
similarity index 100%
rename from oceanarray/report/_instrument.py
rename to oceanarray/reports/_instrument.py
diff --git a/oceanarray/report/_mooring.py b/oceanarray/reports/_mooring.py
similarity index 100%
rename from oceanarray/report/_mooring.py
rename to oceanarray/reports/_mooring.py
diff --git a/oceanarray/report/_pdf.py b/oceanarray/reports/_pdf.py
similarity index 98%
rename from oceanarray/report/_pdf.py
rename to oceanarray/reports/_pdf.py
index e68b0c7..fa0dfe0 100644
--- a/oceanarray/report/_pdf.py
+++ b/oceanarray/reports/_pdf.py
@@ -1,6 +1,6 @@
 """Combine a mooring's per-report HTML files into a single A4 PDF.
 
-The HTML reports written by :class:`~oceanarray.report._mooring.MooringReport`
+The HTML reports written by :class:`~oceanarray.reports._mooring.MooringReport`
 are the single source of truth.  This module post-processes those files with
 WeasyPrint — it does not touch report generation or the Jinja templates.  Print
 layout (A4 page size, margins, page numbers, page-break avoidance, hidden nav
diff --git a/oceanarray/report/_plots.py b/oceanarray/reports/_plots.py
similarity index 100%
rename from oceanarray/report/_plots.py
rename to oceanarray/reports/_plots.py
diff --git a/oceanarray/report/_recovery_table.py b/oceanarray/reports/_recovery_table.py
similarity index 100%
rename from oceanarray/report/_recovery_table.py
rename to oceanarray/reports/_recovery_table.py
diff --git a/oceanarray/report/_stack.py b/oceanarray/reports/_stack.py
similarity index 100%
rename from oceanarray/report/_stack.py
rename to oceanarray/reports/_stack.py
diff --git a/pyproject.toml b/pyproject.toml
index 213efa0..32fd00b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -143,14 +143,14 @@ ignore = [
 "oceanarray/tools/rapid_interp.py" = ["ANN", "D", "F841", "SLF001", "TRY003", "BLE001"]  # legacy physics code; rewrite deferred
 # Report generators: every function wraps rendering in try/except → None on failure.
 # This is the established pattern for keeping HTML reports partially working on bad data.
-"oceanarray/report/_plots.py" = ["BLE001", "TRY300", "TRY301", "TRY003"]
+"oceanarray/reports/_plots.py" = ["BLE001", "TRY300", "TRY301", "TRY003"]
 # Vendored byte-identical from ../ctdcast (shared report foundation, spec §9); kept
 # identical for the planned cross-repo hash check, so lint exemptions live here rather
 # than as edits that would fork the copy. Same try/except-to-None pattern as _plots.py.
-"oceanarray/report/_encode.py" = ["TRY301", "TRY003", "D413"]
-"oceanarray/report/_css.py" = ["D413"]  # vendored; docstring section-blank-line style
-"oceanarray/report/_html_helpers.py" = ["BLE001", "TRY300"]
-"oceanarray/report/_grid.py" = ["BLE001", "TRY300"]
-"oceanarray/report/_instrument.py" = ["BLE001", "TRY300", "ARG001"]
-"oceanarray/report/_mooring.py" = ["BLE001", "TRY003", "TRY300"]
-"oceanarray/report/_stack.py" = ["BLE001", "TRY300", "ARG001", "F841"]
+"oceanarray/reports/_encode.py" = ["TRY301", "TRY003", "D413"]
+"oceanarray/reports/_css.py" = ["D413"]  # vendored; docstring section-blank-line style
+"oceanarray/reports/_html_helpers.py" = ["BLE001", "TRY300"]
+"oceanarray/reports/_grid.py" = ["BLE001", "TRY300"]
+"oceanarray/reports/_instrument.py" = ["BLE001", "TRY300", "ARG001"]
+"oceanarray/reports/_mooring.py" = ["BLE001", "TRY003", "TRY300"]
+"oceanarray/reports/_stack.py" = ["BLE001", "TRY300", "ARG001", "F841"]
diff --git a/tests/conftest.py b/tests/conftest.py
index 9825ef7..8173029 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -28,11 +28,11 @@
 def _raise_on_plot_error(monkeypatch):
     """Make figure-generation failures raise during tests instead of vanishing.
 
-    Flips :data:`oceanarray.report._plots.RAISE_ON_PLOT_ERROR` on for the
+    Flips :data:`oceanarray.reports._plots.RAISE_ON_PLOT_ERROR` on for the
     duration of every test so a broken figure surfaces as a test failure rather
     than a silently-absent panel. Reverted automatically by ``monkeypatch``.
     """
-    from oceanarray.report import _plots
+    from oceanarray.reports import _plots
 
     monkeypatch.setattr(_plots, "RAISE_ON_PLOT_ERROR", True, raising=False)
 
diff --git a/tests/integration/test_pipeline.py b/tests/integration/test_pipeline.py
index 75a9baf..18f6287 100644
--- a/tests/integration/test_pipeline.py
+++ b/tests/integration/test_pipeline.py
@@ -211,7 +211,7 @@ class TestInstrumentReport:
 
     @pytest.fixture(autouse=True)
     def run(self, proc_root_stage3_fresh):
-        from oceanarray.report import MooringReport
+        from oceanarray.reports import MooringReport
 
         reporter = MooringReport(proc_dir=str(proc_root_stage3_fresh))
         result = reporter.generate(
diff --git a/tests/integration/test_recovery_table.py b/tests/integration/test_recovery_table.py
index 9748b99..8a9e6a9 100644
--- a/tests/integration/test_recovery_table.py
+++ b/tests/integration/test_recovery_table.py
@@ -9,7 +9,7 @@
 missing-variable guards that only surface on a real NetCDF.
 """
 
-from oceanarray.report._recovery_table import generate_recovery_table
+from oceanarray.reports._recovery_table import generate_recovery_table
 
 MOORING = "dune2_1_2026"
 
diff --git a/tests/unit/test_array.py b/tests/unit/test_array.py
index 3c2d806..0934356 100644
--- a/tests/unit/test_array.py
+++ b/tests/unit/test_array.py
@@ -1,4 +1,4 @@
-"""Unit tests for pure helper functions in oceanarray.report._array.
+"""Unit tests for pure helper functions in oceanarray.reports._array.
 
 Tests cover _parse_decdeg, _lat_lon_from_cfg, _count_instruments, and
 _build_type_summary — all functions with no I/O dependencies that can be
@@ -7,7 +7,7 @@
 
 import pytest
 
-from oceanarray.report._array import (
+from oceanarray.reports._array import (
     _build_type_summary,
     _count_instruments,
     _lat_lon_from_cfg,
diff --git a/tests/unit/test_paths.py b/tests/unit/test_paths.py
index 5661c0c..3c42ef1 100644
--- a/tests/unit/test_paths.py
+++ b/tests/unit/test_paths.py
@@ -65,7 +65,7 @@ def test_all_call_sites_agree():
     """
     from oceanarray.processors.stage3 import _safe_serial as s3
     from oceanarray.processors.helpers import _safe_serial as h
-    from oceanarray.report._html_helpers import _safe_serial as r
+    from oceanarray.reports._html_helpers import _safe_serial as r
 
     raw = "16430, R01-024"
     results = {safe_serial(raw), s3(raw), h(raw), r(raw)}
diff --git a/tests/unit/test_pdf_report.py b/tests/unit/test_pdf_report.py
index c3b4b21..f61435a 100644
--- a/tests/unit/test_pdf_report.py
+++ b/tests/unit/test_pdf_report.py
@@ -1,4 +1,4 @@
-"""Unit tests for oceanarray/report/_pdf.py (HTML-to-PDF combination).
+"""Unit tests for oceanarray/reports/_pdf.py (HTML-to-PDF combination).
 
 `_ordered_report_files` is pure and tested without WeasyPrint; the render test
 is gated behind an importorskip because WeasyPrint is an optional extra.
@@ -9,8 +9,8 @@
 import pytest
 import yaml
 
-from oceanarray.report import MooringReport, combine_mooring_pdf
-from oceanarray.report._pdf import _ordered_report_files
+from oceanarray.reports import MooringReport, combine_mooring_pdf
+from oceanarray.reports._pdf import _ordered_report_files
 
 # Minimal mooring YAML that MooringReport.generate() can render a summary from
 # (mirrors the fixture in test_report.py::TestMooringReport).
@@ -185,7 +185,7 @@ def test_all_pdf_best_effort_but_explicit_pdf_fails(
         self, tmp_path: Path, monkeypatch
     ) -> None:
         """If the PDF can't be built: `--all` keeps HTML success (0); `--pdf` fails (1)."""
-        import oceanarray.report as report_pkg
+        import oceanarray.reports as report_pkg
         from oceanarray.cli import build_parser
 
         def _boom(*_a, **_k):
diff --git a/tests/unit/test_plot_guard.py b/tests/unit/test_plot_guard.py
index 4fee934..f892b76 100644
--- a/tests/unit/test_plot_guard.py
+++ b/tests/unit/test_plot_guard.py
@@ -11,7 +11,7 @@
 import matplotlib.pyplot as plt
 import pytest
 
-from oceanarray.report import _plots
+from oceanarray.reports import _plots
 
 
 # ---------------------------------------------------------------------------
diff --git a/tests/unit/test_recovery_table.py b/tests/unit/test_recovery_table.py
index dc2db2b..6af85af 100644
--- a/tests/unit/test_recovery_table.py
+++ b/tests/unit/test_recovery_table.py
@@ -1,10 +1,10 @@
-"""Unit tests for the pure helpers in oceanarray.report._recovery_table.
+"""Unit tests for the pure helpers in oceanarray.reports._recovery_table.
 
 These are string/number formatters with no I/O — tested directly (the HTML
 render path is exercised by the integration test).
 """
 
-from oceanarray.report._recovery_table import (
+from oceanarray.reports._recovery_table import (
     _fmt_drift,
     _instrument_label,
     _interval_s,
diff --git a/tests/unit/test_report.py b/tests/unit/test_report.py
index bd52594..2f9ad3f 100644
--- a/tests/unit/test_report.py
+++ b/tests/unit/test_report.py
@@ -1,4 +1,4 @@
-"""Unit tests for oceanarray/report/ package.
+"""Unit tests for oceanarray/reports/ package.
 
 Three test classes:
   TestHtmlHelpers       — pure functions in _html_helpers.py
@@ -13,7 +13,7 @@
 import yaml
 from pathlib import Path
 
-from oceanarray.report._html_helpers import (
+from oceanarray.reports._html_helpers import (
     _duration_str,
     _fmt_dt,
     _fmt_minmax,
@@ -26,7 +26,7 @@
     _safe_serial,
     _stage_files,
 )
-from oceanarray.report._mooring import MooringReport
+from oceanarray.reports._mooring import MooringReport
 
 
 # ---------------------------------------------------------------------------
@@ -461,7 +461,7 @@ def mooring_setup(self, tmp_path):
 
     # generate_instrument_pages
     def test_generate_instrument_pages_creates_html(self, mooring_setup):
-        from oceanarray.report._instrument import generate_instrument_pages
+        from oceanarray.reports._instrument import generate_instrument_pages
 
         setup = mooring_setup
         report = MooringReport(proc_dir=str(setup["proc_dir"].parent))
@@ -484,7 +484,7 @@ def test_generate_instrument_pages_creates_html(self, mooring_setup):
         assert len(pages) >= 1
 
     def test_generate_instrument_pages_html_contains_serial(self, mooring_setup):
-        from oceanarray.report._instrument import generate_instrument_pages
+        from oceanarray.reports._instrument import generate_instrument_pages
 
         setup = mooring_setup
         report = MooringReport(proc_dir=str(setup["proc_dir"].parent))
@@ -508,7 +508,7 @@ def test_generate_instrument_pages_html_contains_serial(self, mooring_setup):
 
     def test_generate_instrument_pages_no_nc(self, tmp_path):
         """Should complete without error even when no NC files exist."""
-        from oceanarray.report._instrument import generate_instrument_pages
+        from oceanarray.reports._instrument import generate_instrument_pages
 
         proc_dir = tmp_path / "proc" / "TEST_M1"
         proc_dir.mkdir(parents=True)
@@ -548,7 +548,7 @@ def test_generate_instrument_pages_no_nc(self, tmp_path):
 
     # generate_stack_page
     def test_generate_stack_page_creates_html(self, mooring_setup):
-        from oceanarray.report._stack import generate_stack_page
+        from oceanarray.reports._stack import generate_stack_page
 
         setup = mooring_setup
         stack_nc = setup["proc_dir"] / "TEST_M1_stack.nc"
@@ -569,7 +569,7 @@ def test_generate_stack_page_creates_html(self, mooring_setup):
         assert out.stat().st_size > 0
 
     def test_generate_stack_page_html_structure(self, mooring_setup):
-        from oceanarray.report._stack import generate_stack_page
+        from oceanarray.reports._stack import generate_stack_page
 
         setup = mooring_setup
         stack_nc = setup["proc_dir"] / "TEST_M1_stack.nc"
@@ -592,7 +592,7 @@ def test_generate_stack_page_html_structure(self, mooring_setup):
 
     # generate_grid_page
     def test_generate_grid_page_creates_html(self, mooring_setup):
-        from oceanarray.report._grid import generate_grid_page
+        from oceanarray.reports._grid import generate_grid_page
 
         setup = mooring_setup
         grid_nc = setup["proc_dir"] / "TEST_M1_grid.nc"
@@ -613,7 +613,7 @@ def test_generate_grid_page_creates_html(self, mooring_setup):
         assert out.stat().st_size > 0
 
     def test_generate_grid_page_html_contains_mooring(self, mooring_setup):
-        from oceanarray.report._grid import generate_grid_page
+        from oceanarray.reports._grid import generate_grid_page
 
         setup = mooring_setup
         grid_nc = setup["proc_dir"] / "TEST_M1_grid.nc"
diff --git a/tests/unit/test_report_golden.py b/tests/unit/test_report_golden.py
index 3864f98..224e946 100644
--- a/tests/unit/test_report_golden.py
+++ b/tests/unit/test_report_golden.py
@@ -21,7 +21,7 @@
 
 import pytest
 
-from oceanarray.report import MooringReport
+from oceanarray.reports import MooringReport
 from oceanarray.utilities import _safe_rel
 
 _FIXTURES = pathlib.Path(__file__).resolve().parents[1] / "fixtures"
diff --git a/tests/unit/test_report_tokens.py b/tests/unit/test_report_tokens.py
index 66c9f8f..c34bac8 100644
--- a/tests/unit/test_report_tokens.py
+++ b/tests/unit/test_report_tokens.py
@@ -19,7 +19,7 @@
 import pytest
 
 from oceanarray.config import report_tokens as tok
-from oceanarray.report import _encode
+from oceanarray.reports import _encode
 
 
 # ---------------------------------------------------------------------------