diff --git a/.gitmodules b/.gitmodules
index 30c57342..2dd4e185 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -245,3 +245,6 @@
 [submodule "mods/basic_materials"]
 	path = mods/basic_materials
 	url = https://gitlab.com/VanessaE/basic_materials
+[submodule "mods/sea"]
+	path = mods/sea
+	url = https://git.tchncs.de/Illuna-Minetest/minetest-mod-sea
diff --git a/mods/sea b/mods/sea
new file mode 160000
index 00000000..58e245a9
--- /dev/null
+++ b/mods/sea
@@ -0,0 +1 @@
+Subproject commit 58e245a94fedfdaf41b09552408b8533fe32d4ab