My first visit to the sea life centre was a great success. I would go there again, and I would recommend it to others. There are a huge number of exhibits, and a lot of fish, frogs, terrapins and other interesting creatures to look at (and do impressions of). I spent about 3 hours in there going from tank to tank. As long as you're not with someone who hates fish, or has a short attention span (teeny kids) then I think you can get your money's worth (get a 2for1 voucher or itll be £16.40 each).
The architecture of the building is really cool, and the shop wasnt too expensive when i wanted a drink and a snack.
The large pool with the turtles and sharks in is the best, and not long after we got there we had a talk from some of the staff about the sharks. I was too busy looking at them being fed to really listen.
N.B. Dont waste your money on the 20p machines- fortune teller etc.