diff --git a/autotest/test_gwe_drycell_conduction0.py b/autotest/test_gwe_drycell_conduction0.py
index 849f1a81ab5..e135d72c0d1 100644
--- a/autotest/test_gwe_drycell_conduction0.py
+++ b/autotest/test_gwe_drycell_conduction0.py
@@ -1,22 +1,24 @@
-# ## Test problem for GWE
-#
-# Test the energy "flowing" through a dry cell. The test checks for
-# some of the flow-through energy being left behind and warming the
-# cell it passes through.  Based on the model appearing in the
-# MT3D-USGS documention, pages 13-14.  Dry cell is in layer 1, row 1
-# column 4.
-#
-#     +-------+-------+-------+-------+-------+-------+
-#  -> |   ->  |       |       | DRY   |       |       |
-#     |       |  ->   |       |   CELL|       |       |
-#     |       |       |  ->  -+-> |   |       |       |
-#     +-------+-------+-------+---+---+-------+-------+
-#     |       |       |       |   v   |       |       |
-#  -> |   ->  |  ->   |  ->   |  ->   |  ->   |  ->   | ->
-#     |       |       |       |       |       |       |
-#     +-------+-------+-------+-------+-------+-------+
-#
-#              --->  Direction of flow  --->
+"""
+Test problem for GWE
+
+Test the energy "flowing" through a dry cell. The test checks for
+some of the flow-through energy being left behind and warming the
+cell it passes through.  Based on the model appearing in the
+MT3D-USGS documention, pages 13-14.  Dry cell is in layer 1, row 1
+column 4.
+
+     +-------+-------+-------+-------+-------+-------+
+  -> |   ->  |       |       | DRY   |       |       |
+     |       |  ->   |       |   CELL|       |       |
+     |       |       |  ->  -+-> |   |       |       |
+     +-------+-------+-------+---+---+-------+-------+
+     |       |       |       |   v   |       |       |
+  -> |   ->  |  ->   |  ->   |  ->   |  ->   |  ->   | ->
+     |       |       |       |       |       |       |
+     +-------+-------+-------+-------+-------+-------+
+
+              --->  Direction of flow  --->
+"""
 
 # Imports
 
diff --git a/autotest/test_gwe_drycell_conduction1.py b/autotest/test_gwe_drycell_conduction1.py
index 25f154790b8..47857444f1e 100644
--- a/autotest/test_gwe_drycell_conduction1.py
+++ b/autotest/test_gwe_drycell_conduction1.py
@@ -1,35 +1,37 @@
-# ## Test problem for GWE
-#
-# Test the energy "flowing" between two dry cells via conduction
-# only using a temperature gradient
-#
-#   ~: Represents conduction
-#
-# A) 1st model configuration
-#
-#       +---------+---------+
-#       |         |~        |
-#       |         |~        |
-#       +---------+---------+
-#
-# B) 2nd model configuration
-#
-#       +---------+
-#       |         |
-#       |  ~   ~  |
-#       +---------+
-#       |         |
-#       |         |
-#       +---------+
-#
-# C) 3rd model configuration
-#
-#                 +---------+
-#       +---------+         |
-#       |         |~        |
-#       |         +---------+
-#       +---------+
-#
+"""
+Test problem for GWE
+
+Test the energy "flowing" between two dry cells via conduction
+only using a temperature gradient
+
+   ~: Represents conduction
+
+ A) 1st model configuration
+
+       +---------+---------+
+       |         |~        |
+       |         |~        |
+       +---------+---------+
+
+ B) 2nd model configuration
+
+       +---------+
+       |         |
+       |  ~   ~  |
+       +---------+
+       |         |
+       |         |
+       +---------+
+
+ C) 3rd model configuration
+
+                 +---------+
+       +---------+         |
+       |         |~        |
+       |         +---------+
+       +---------+
+"""
+
 # Imports
 
 import os
diff --git a/autotest/test_gwe_drycell_conduction2.py b/autotest/test_gwe_drycell_conduction2.py
index d5e354b6f7a..75439cae5e1 100644
--- a/autotest/test_gwe_drycell_conduction2.py
+++ b/autotest/test_gwe_drycell_conduction2.py
@@ -1,46 +1,47 @@
-# ## Test problem for GWE
-#
-# Test conduction from a partially saturated group of cells into their dry
-# neighbors.  Referring to this test as a flowing trough problem.
-#
-#
-#  Profile (side) view w/ approximate water table profile shown
-#     +-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
-#     |-------|_______|_______|       |       |       |       |       |       |       |       |       |
-#     |       |       |       |-------|_______|       |       |       |       |       |       |       |
-#     |       |       |       |       |       |-------|_______|       |       |       |       |       |
-#     |       |       |       |       |       |       |       |-------|       |       |       |       |
-#     |       |       |       |       |       |       |       |       |-------|       |       |       |
-#     |       |       |       |       |       |       |       |       |       |-------|       |       |
-#     |       |       |       |       |       |       |       |       |       |       |-------|       |
-#     |       |       |       |       |       |       |       |       |       |       |       |-------|
-#     |       |       |       |       |       |       |       |       |       |       |       |       |
-#     |       |       |       |       |       |       |       |       |       |       |       |       |
-#     |       |       |       |       |       |       |       |       |       |       |       |       |
-#     |       |       |       |       |       |       |       |       |       |       |       |       |
-#     +-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
-#
-#         ^
-#         |
-#         v
-#
-#  Profile view (all rows)
-#     +-------+-------+
-#     |       |       |
-#     |       |       | <- dry cell that's checked for warming owing to increasing
-#     |  v    +-------+                          temperature of neighboring cell
-#     |-------| <- water table
-#     |       |
-#     |       |
-#     |       |
-#     |       |
-#     |       |
-#     |       |
-#     |       |
-#     |       |
-#     +-------+
-#
-#
+"""
+Test problem for GWE
+
+Test conduction from a partially saturated group of cells into their dry
+neighbors.  Referring to this test as a flowing trough problem.
+
+
+  Profile view of columns w/ approximate water table profile shown
+     +-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
+     |-------|_______|_______|       |       |       |       |       |       |       |       |       |
+     |       |       |       |-------|_______|       |       |       |       |       |       |       |
+     |       |       |       |       |       |-------|_______|       |       |       |       |       |
+     |       |       |       |       |       |       |       |-------|       |       |       |       |
+     |       |       |       |       |       |       |       |       |-------|       |       |       |
+     |       |       |       |       |       |       |       |       |       |-------|       |       |
+     |       |       |       |       |       |       |       |       |       |       |-------|       |
+     |       |       |       |       |       |       |       |       |       |       |       |-------|
+     |       |       |       |       |       |       |       |       |       |       |       |       |
+     |       |       |       |       |       |       |       |       |       |       |       |       |
+     |       |       |       |       |       |       |       |       |       |       |       |       |
+     |       |       |       |       |       |       |       |       |       |       |       |       |
+     +-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+
+
+         ^
+         |
+         v
+
+  Profile view of rows
+     +-------+-------+
+     |       |       |
+     |       |       | <- dry cell that's checked for warming owing to increasing
+     |  v    +-------+                          temperature of neighboring cell
+     |-------| <- water table
+     |       |
+     |       |
+     |       |
+     |       |
+     |       |
+     |       |
+     |       |
+     |       |
+     +-------+
+"""
+
 # Imports
 
 import os
diff --git a/autotest/test_gwe_dsp.py b/autotest/test_gwe_dsp.py
index 0af08ee25ed..8b3747782d9 100644
--- a/autotest/test_gwe_dsp.py
+++ b/autotest/test_gwe_dsp.py
@@ -1,13 +1,15 @@
-# ## Test problem for GWE
-#
-# One-Dimensional Transport in a Uniform Flow Field.
-# The purpose of this script is to test the new heat transport model developed
-# for MODFLOW 6.  To that end, this problem uses the setup of the first MT3DMS
-# test problem but adapts it for heat. MODFLOW 6 is setup using the new GWE
-# model with input parameters entered in their native units.
-#
-# It may be possible to find a 1D heat transport analytical solution in the
-# future.
+"""
+Test problem for GWE
+
+One-Dimensional Transport in a Uniform Flow Field.
+The purpose of this script is to test the new heat transport model developed
+for MODFLOW 6.  To that end, this problem uses the setup of the first MT3DMS
+test problem but adapts it for heat. MODFLOW 6 is setup using the new GWE
+model with input parameters entered in their native units.
+
+It may be possible to find a 1D heat transport analytical solution in the
+future.
+"""
 
 # Imports