A smuggler's cove, not necessarily for them to hide in since they are so well protected in Viiten itself, but more of a place to stash stuff since it's so full of different rock formations and caves. However this is often well guarded by smuggler's and a great place to either get killed or hide a body. Just don't go looking for someone else's treasure because if you are found out, no one is going to help you in the Kingdom.