diff --git a/src/marker_sets/overworld/tunnels.py b/src/marker_sets/overworld/tunnels.py
index 6151902..ae31d9a 100644
--- a/src/marker_sets/overworld/tunnels.py
+++ b/src/marker_sets/overworld/tunnels.py
@@ -12,13 +12,19 @@ MARKER_SET = MarkerSet(
                 (-1000, 15, -196),
             ],
         ),
+        Track(
+            name="Danio's Warp Tunnel North",
+            points=[
+                (-1000, 23, -1161),
+                (-1000, 23, 1000),
+            ],
+        ),
         Track(
             name="Danio's Warp Tunnel South",
             points=[
                 (-1000, 23, 1000),
-                (-1000, 23, -1161),
+                (-1000, 23, 4980),
             ],
         ),
-        # NOTE: there is a north part to this tunnel, yet to be mapped
     ],
 )