Incredible variety of fish for a small location. Otters, penguin, turtles, rays, jellyfish (a lot of jellyfish) tropical fish, forage fish can be seen here. Larger fish such sharks and dolphin aren't around it seems. 

You MUST visit their website and register for a ticket prior to visiting. There is a ticket office but they will not sell you on-demand tickets.

Photography is allowed as long as it's not commercial and bothering other guests. The place seems like a popular date location.