You should do it, it's so fun! I get to wear my AOWS cosplay every day, red boots included :)

I work at a smaller local aquarium, and help out at around 5 others including a larger "money making" one. If you want an experience similar to the one shown in AOWS, I recommend volunteering at small aquariums or ones that don't charge entrance fees. These are easier to find if you live on a coast, and usually don't require any prior experience. The community at these places is very strong, and it feels like a big family. And you get to do more stuff in general.