diff --git a/docs/iris/gallery_code/meteorology/plot_wind_speed.py b/docs/iris/gallery_code/meteorology/plot_wind_speed.py
index 79be64ddd7..8d43bae320 100644
--- a/docs/iris/gallery_code/meteorology/plot_wind_speed.py
+++ b/docs/iris/gallery_code/meteorology/plot_wind_speed.py
@@ -46,7 +46,11 @@ def main():
 
     # Set up axes to show the lake
     lakes = cfeat.NaturalEarthFeature(
-        "physical", "lakes", "50m", facecolor="none"
+        "physical",
+        "lakes",
+        "50m",
+        facecolor="none",
+        edgecolor="black",
     )
 
     plt.figure()
diff --git a/docs/iris/src/developers_guide/contributing_code_formatting.rst b/docs/iris/src/developers_guide/contributing_code_formatting.rst
index 1a3573d135..5b726b41e7 100644
--- a/docs/iris/src/developers_guide/contributing_code_formatting.rst
+++ b/docs/iris/src/developers_guide/contributing_code_formatting.rst
@@ -39,7 +39,7 @@ linted according to our ``.flake8`` configuration file. Note that,
 for each ``.pre-commit-config.yaml`` git hook.
 
 Additionally, you may wish to enable ``black`` for your preferred
-`editor/IDE <https://black.readthedocs.io/en/stable/editor_integration.html#editor-integration>`_.
+`editor/IDE <https://black.readthedocs.io/en/stable/integrations/editors.html>`_.
 
 With the ``pre-commit`` configured, the output of performing a ``git commit``
 will look similar to::
diff --git a/lib/iris/fileformats/netcdf.py b/lib/iris/fileformats/netcdf.py
index bb7a870d58..2032f2349f 100644
--- a/lib/iris/fileformats/netcdf.py
+++ b/lib/iris/fileformats/netcdf.py
@@ -1043,7 +1043,7 @@ def write(
             dtype(i.e. 'i2', 'short', 'u4') or a dict of packing parameters as
             described below. This provides support for netCDF data packing as
             described in
-            http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#bp_Packed-Data-Values
+            https://www.unidata.ucar.edu/software/netcdf/documentation/NUG/best_practices.html#bp_Packed-Data-Values
             If this argument is a type (or type string), appropriate values of
             scale_factor and add_offset will be automatically calculated based
             on `cube.data` and possible masking. For more control, pass a dict
@@ -2589,7 +2589,7 @@ def save(
         (i.e. 'i2', 'short', 'u4') or a dict of packing parameters as described
         below or an iterable of such types, strings, or dicts.
         This provides support for netCDF data packing as described in
-        http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#bp_Packed-Data-Values
+        https://www.unidata.ucar.edu/software/netcdf/documentation/NUG/best_practices.html#bp_Packed-Data-Values
         If this argument is a type (or type string), appropriate values of
         scale_factor and add_offset will be automatically calculated based
         on `cube.data` and possible masking. For more control, pass a dict with