UnderWater World, Tumon

3.2
#3 of 6 in Parks in Tumon
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 an itinerary including UnderWater World
map
© OpenMapTiles © OpenStreetMap contributors
UnderWater World Reviews
Rate this attraction
TripAdvisor Traveler Rating
TripAdvisor Traveler Rating 4.0
530 reviews
Google
4.0
TripAdvisor
  • The aquarium itself is not big, but there is a long underwater tunnel, and the fish swim swimming in the water tank. There are not many fish in a small aquarium like an aquarium in Japan, so you can see the fish swimming calmly.
    View original
  • It was perfect for the daughter who liked sharks. It was so full of sharks that there were only sharks and ei. I just made it a course to watch, but i thought it was better to have an experience type.
    View original
Google
  • The entrance fee is a bit costly but the presentation was good for the kids. Their selling point is the longest underwater walk in the world. It was actually a fun walk, i wish i could see more fish. The new area, Mariana Trench does not show fish, instead they show the lessons and learns from their study . The divers were really friendly for my kid.
  • I take my daughter weekly here. We sit in the tunnel for close to an hour each time we visit. She loves it. The staff is friendly and educators on Guam get a free year long pass by presenting their school ID
  • Build a plan

    Tell us where and when you
    want to go, we will build
    the best sightseeing itinerary
  • Refine it

    You have complete flexibility on your destinations and itinerary
  • Book as a package

    Use our travel agents to get
    package savings and hassle free booking
  • Enjoy your trip!

    Enjoy our 24x7
    on-trip assistance

Popular things to do in Tumon

View all >
4.6
Duration: 2​h
4.4
Duration: 2​h
3.9
Duration: 1​h 30​min
5.0
Duration: 4​h

Side trips from Tumon

3.0
Duration: 2​h
3.5
Duration: 2​h
4.4
Duration: 2​h
4.0
Duration: 2​h

Shopping in Tumon

3.5
Duration: 2​h
3.0
Duration: 2​h
3.4
Duration: 2​h 30​min
1.6
Duration: 2​h

Hidden gems in Tumon

4.2
Duration: 2​h
3.1
Duration: 2​h
4.0
Duration: 30​min

Kid-friendly things to do in Tumon

2.1
Duration: 2​h
3.0
Duration: 2​h
2.7
Duration: 2​h
1.5
Duration: 2​h

Nearby attractions in Tumon

5.0
Duration: 4​h
4.9
Duration: 1​h 30​min
3.7
Duration: 1​h 30​min
4.8
Duration: 2​h
5.0
Duration: 4​h
3.2
Duration: 2​h
3.0
Duration: 2​h
3.5
Duration: 1​h 30​min