Getting to this zone is a long haul but I highly recommend it to anyone who has an enduring breath item or spell/song.
It's not to difficult at level 52 but I did venture a bit far and found a room full of Seasnakes. I stayed back in the little hall but apparently they have a large aggro. One Seahorse started moving around apparently "buffing" other horses and then all at once, they came after me and my pet. I didn't last long and bit the dust.
Stay away from the water maidens. I pulled one to a safe spot and she proceeded to chew my pet to pieces. I managed to take her down but she made fish food put of my fully mage toyed pet.
The sharks are cool and there are a few named pops that I saw without having to venture to far into this zone.
Overall a great zone that a small group of level 50 characters could own all by themselves with proper crowd control.