diff --git a/modflowapi/extensions/apiexchange.py b/modflowapi/extensions/apiexchange.py
index c3dae5f..de9c3b3 100644
--- a/modflowapi/extensions/apiexchange.py
+++ b/modflowapi/extensions/apiexchange.py
@@ -16,5 +16,9 @@ class ApiExchange(ApiMbase):
     """
 
     def __init__(self, mf6, name):
-        pkg_types = {"gwf-gwf": ListPackage, "gwt-gwt": ListPackage}
+        pkg_types = {
+            "gwf-gwf": ListPackage,
+            "gwt-gwt": ListPackage,
+            "gwe-gwe": ListPackage,
+        }
         super().__init__(mf6, name, pkg_types)
diff --git a/modflowapi/extensions/apimodel.py b/modflowapi/extensions/apimodel.py
index 92dae99..69fa317 100644
--- a/modflowapi/extensions/apimodel.py
+++ b/modflowapi/extensions/apimodel.py
@@ -165,11 +165,16 @@ def __init__(self, mf6, name):
             "sto": ArrayPackage,
             "wel": ListPackage,
             # gwt
-            "adv": ArrayPackage,
+            "dsp": ArrayPackage,
             "cnc": ListPackage,
             "ist": ArrayPackage,
             "mst": ArrayPackage,
             "src": ListPackage,
+            # gwe
+            "cnd": ArrayPackage,
+            "ctp": ListPackage,
+            "esl": ListPackage,
+            "est": ArrayPackage,
         }
 
         self.allow_convergence = True
diff --git a/modflowapi/extensions/pakbase.py b/modflowapi/extensions/pakbase.py
index efb45be..2713ac2 100644
--- a/modflowapi/extensions/pakbase.py
+++ b/modflowapi/extensions/pakbase.py
@@ -92,7 +92,7 @@
         "auxvar",
     ],
     # gwt model
-    "adv": ["diffc", "alh", "alv", "ath1", "ath2", "atv"],
+    "dsp": ["diffc", "alh", "alv", "ath1", "ath2", "atv"],
     "cnc": [
         "maxbound",
         "nbound",
@@ -121,9 +121,31 @@
         "auxname_cst",
         "auxvar",
     ],
+    # gwe model
+    "cnd": ["alh", "alv", "ath1", "ath2", "atv", "ktw", "kts"],
+    "ctp": [
+        "maxbound",
+        "nbound",
+        "nodelist",
+        ("bound", ("temp",)),
+        "naux",
+        "auxname_cst",
+        "auxvar",
+    ],
+    "esl": [
+        "maxbound",
+        "nbound",
+        "nodelist",
+        ("bound", ("senerrate",)),
+        "naux",
+        "auxname_cst",
+        "auxvar",
+    ],
+    "est": ["porosity", "decay", "cps", "rhos"],
     # exchange model
     "gwf-gwf": ["nexg", "nodem1", "nodem2", "cl1", "cl2", "ihc"],
     "gwt-gwt": ["nexg", "nodem1", "nodem2", "cl1", "cl2", "ihc"],
+    "gwe-gwe": ["nexg", "nodem1", "nodem2", "cl1", "cl2", "ihc"],
     # simulation
     "ats": [
         "maxats",