The aquarium is very long with multiple levels of different exhibits! It is a little over-priced for entering but worth every single penny! Will definitely be going back sometime very soon!

Our toddler loved this aquarium so, so much and it was a great experience overall. However, we went in the evening with our daughter in a stroller and at the end of the tunnel, the exit is an escalator! The staff was too busy preparing for the cocktail lounge hour to be found to ask for assistance to exit. Finally someone appeared and we were escorted out through the way we came. Very inconvenient and could be scary during an emergency.

I have lived on Guam for nearly 3 years now, and I have to say that Underwater World is the best attraction by far in Tumon. My husband and I have a yearly pass and go often for their cocktail hour as well.

The aquariums are set up beautifully, and the selection of fish and mammals they have are astounding.

I highly recommend taking a trip to this place!

This is a great place to teach your children about life under the sea! We go at least once a month and each time we learn something new about the sea life that surrounds us. For thoes who are just on Guam for a visit....It is well worth your time to come and see what Underwater World is all about!

I am in the Military, got a local rate to enter and it was awesome to walk through. I took a date and we had a nice time. No rush through by staff, but if you go up stairs, you are finished touring.

A great place, the prices again are for Asian tourists not for American tourists. This is the greatest aquarium in Micronesia. When you first go in you are in this Tropical Rainforest Atmosphere and you get to see some birds, snakes and turtles. Then you enter the World's largest tunnel aquarium. You also have the option to feed the sharks. ...

Underwater World is labelled "The biggest underwater aquarium in the world." I think it is pretty big aquarium. Lots of fishes and other sea creatures are shown in these aquariums and they even have a petting area to touch some of the sea creatures. The price for the aquarium is a little up there but it is a big tourist attraction in Guam.

IT WAS AN AMAZING EXPERIENCE! ALTHOUGH IT WAS MY FIRST VISIT TO AN AQUARIUM, I HAD A GREAT TIME. THE STAFF WAS FRIENDLY AND HELPFUL

This is a great place to go with kids! Since we are stationed here with the military, we purchased the membership cards and we take our toddler all the time! We all enjoy watching the fish and especially the sea turtles! And our son loves to get the chance to touch the shark in the "touch pool"! It is a bit pricey, but they do offer ...