You have 1 trip in progress.   See all
Trip Planner:   Guam  /  Tumon  /  UnderWater World

UnderWater World, Tumon

#5 of 34 in Parks in Guam
Aquarium · Zoo / Aquarium
Create an itinerary including UnderWater World
Featuring one of the world's longest underwater observation tunnels, UnderWater World is home to more than 80 species of marine animals, including moray eels, spotted eagle rays, and zebra sharks. If you're feeling particularly adventurous, you can take the plunge and swim in the shark tank, under the supervision of aquarium staff. Don't miss the hands-on experience at the touch tank. See UnderWater World and all Tumon has to offer by arranging your trip with our Tumon tour itinerary maker website.
Create a full itinerary - for free!

UnderWater World reviews

Rate this attraction
TripAdvisor traveler rating
TripAdvisor traveler rating 4.0
557 reviews
  • Giving five stars because of the seatrek experience! We haven’t been home (to Guam) since we left when I was about 3 years old due to my dad being in the military, so I made my mom do it with me and she was super nervous about it! But the divers were super fun to be around and made sure everything went smoothly and that everyone was safe and having fun! The experience was so amazing and I loved being able to be so close to the sea turtle and able to touch it, I LOVE sea turtles! If we were staying on Guam longer, I would have taken up dive classes somewhere, but this was such a great alternative! I even got a little shark tooth from one of the divers there! The pricing for videos and images can be pricey, but well worth it, this isn’t an everyday opportunity for most people. I went with the most expensive package so my mom and I had all the videos and images to look back on and show our family state side. This aquarium in general is a cute little place to go with the kids, I highly recommend visiting if you’re here for a little while. Read about the marine life and see the beauty of it as well! Shout out to the divers - YALL ARE THE BEST! :)
  • I haven't been here since i was a little girl in 2009. This place changed a lot. I still enjoyed my visit. I was here on a environmental biology project and I was able to take many pictures and learn different types of fish and their habitats.

Plan your trip to Tumon

  • Get a personalized trip
    A full day by day itinerary based on your preferences
  • Customize it
    Refine your trip. We'll find the
    best routes and schedules
  • Manage it
    Everything in one place. Everyone on the same page.