Two questions...

First, where exactly is the underwater Coliseum? Second, where is the underwater pirate's treasure? There is a large area in the center of the Lost Sea that won't allow me to explore in my ship...is this where one of the previous two are? I have killed the Hydra and found the Pyramid, but am now stuck with the game. Any help welcome and appreciated.

its south of where cets tomb in under water
as for the pirates trasure i have found a chest under water but i dont know if its his it was west of the pirate blood

Hi hmmm didnt it says under water town, get your snorkel on and dive, the Coliseum is pointed out on your map, in the middel there the name shows it, btw remember some scuba
gear, or you wont get far!!