| Category | Caverns |
| Continent | Brucrumus |
| Region | Adunamar |
| Alias | Descend One |
| Map | Vul Sahsir |
Tumbo Gein is a two mile long passage that leaves the subterranean world for the surface. On the surface, this passage ends in the half-submerged caves on the western shores of lake Lokzii Ahraan.