sea of monsters

also known as the bermuda triangle, the sea of monsters is home to...well, monsters, hence it's name. there are only two entrances - the clashing rocks and the strait of scylla and charybdis. both are nearly impossible to get through, so you'd better have some tricks up your sleeve or a god's blessing. just because you get through the entrance doesn't mean it's smooth sailing afterwards, there are still the islands of circe, polyphemus and the sirens.