Crookspur - how do you reach the hinterlands?

[abaris]

It seems there's a lot of map space to explore on the island, but I didn't find a map transition so far.

[Tarlonniel]

IIRC, there's an exit in the caves beneath the fort, near the pool where you can swim in from the outside.

[Clerith]

IIRC, there's an exit in the caves beneath the fort, near the pool where you can swim in from the outside.

Yeah, middle north part of the caves under Crookspur.