diff --git a/worlds/subnautica/Items.py b/worlds/subnautica/Items.py
index f3a6ded5..f0d23662 100644
--- a/worlds/subnautica/Items.py
+++ b/worlds/subnautica/Items.py
@@ -115,7 +115,7 @@ item_table: Dict[int, ItemDict] = {
             'name': 'Light Stick Fragment',
             'tech_type': 'TechlightFragment'},
     35026: {'classification': ItemClassification.progression,
-            'count': 3,
+            'count': 4,
             'name': 'Mobile Vehicle Bay Fragment',
             'tech_type': 'ConstructorFragment'},
     35027: {'classification': ItemClassification.progression,
diff --git a/worlds/subnautica/Locations.py b/worlds/subnautica/Locations.py
index c437fbc9..2ce8cc11 100644
--- a/worlds/subnautica/Locations.py
+++ b/worlds/subnautica/Locations.py
@@ -560,8 +560,12 @@ location_table: Dict[int, LocationDict] = {
     33129: {'can_slip_through': False,
             'name': 'Floating Island - Cave Entrance PDA',
             'need_laser_cutter': False,
-            'position': {'x': -748.9, 'y': 14.4, 'z': -1179.5}}}
-
+            'position': {'x': -748.9, 'y': 14.4, 'z': -1179.5}},
+    33130: {'can_slip_through': False,
+            'name': 'Degasi Seabase - Jellyshroom Cave - Outside PDA',
+            'need_laser_cutter': False,
+            'position': {'x': -83.2, 'y': -276.4, 'z': -345.5}},
+}
 if False:  # turn to True to export for Subnautica mod
     payload = {location_id: location_data["position"] for location_id, location_data in location_table.items()}
     import json
diff --git a/worlds/subnautica/__init__.py b/worlds/subnautica/__init__.py
index 9ad4feb1..2127fb0c 100644
--- a/worlds/subnautica/__init__.py
+++ b/worlds/subnautica/__init__.py
@@ -41,7 +41,7 @@ class SubnauticaWorld(World):
     location_name_to_id = all_locations
     options = Options.options
 
-    data_version = 3
+    data_version = 4
     required_client_version = (0, 3, 3)
 
     prefill_items: List[Item]