spider caves and oddities

[harperfan7]

There are two unique oddities in the basalt caves to the east, where you have to go if you can't pass the agility check to get into the nexus. 

And yet hopper island aka "spider hell" doesn't have anything; no oddities, no special treasure, nada.  Why not move one over there?

[Eximus]

This was the first area in expedition I explored immediately leaving base. On dominating. I agree