I also naturally went from Soraion->Treasure->Soarion->Balbalap, just by deciding to explore a bit.
It’s just barely reachable. I died but saw the port the first time, made it the second.
So, I didn’t visit hetra bheb, grunita, the southern lighthouse, or nouf! I went straight from balbalap to luwoll, and was able to guess at ‘just go east’ from the directions at luwoll. Just barely made it, but on the first try.
This one was fun. I’m thinking now how to combine this with something a bit like Uncharted Waters, but keep the ‘arcade game’ feel of this one without the safety of a friendly, full sim like Uncharted Waters.