Discover an amazing undersea-scape at one of Guam's nicest reef at our Fish Eye Underwater Observatory in Piti Bay Marine Preserve.
The Fish Eye Marine Park Underwater Observatory is the only one of its kind in Micronesia. See the ocean's amazing diversity in the coral structures and as beautiful tropical fish swim by the undersea viewing windows. At the upper deck, look at the hues of emeralds and blues as the ocean opens a kaleidoscope of color for your viewing pleasure.
Prepaid Discount Ticket - Fish Eye Underwater Observatory in Piti Bay Marine Preserve
Regular PriceAdult (12yrs & up): $16.00Child (6-11yrs): $8.00Early Bird Price – 3-day (by 17:00) advanced bookingAdult (12yrs & up): $14.00Child (6-11yrs): $7.00
MOST POPULAR! Observatory with Lunch package - Fish Eye Underwater Observatory in Piti Bay Marine Preserve
Regular PriceAdult (12yrs & up): $34.00Child (6-11yrs): $17.00Early Bird Price – 3-day (by 17:00) advanced bookingAdult (12yrs & up): $30.00Child (6-11yrs): $15.00
Price effective from APR 1, 2023 to MAR 31, 2024
starting from US$16
US$14 per adult
Open 7 days a week from 9 am to 5 pm
(*Hotel transfer, lunch, and web advance booking are not available for Wednesday)
Free Cancellation - 48-hour notice
Duration - 1hours to 2 hours
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English
Perfect for families with children 
Single participant - Welcome
Join in Group 
Hotel Transfer - Optional
Activity Highlights
- Stroll over the clear water of the Piti Bay Marine Preserve by crossing our ocean bridge.
- Discover an amazing undersea-scape at one of Guam's nicest reefs
- Without getting wet, enjoy a view of the true undersea world through 26 observation windows.
- Over 200 species of tropical fish and 80 corals in the bay.
- Have a fine repast with the full spread of delicious lunch buffet including local favor Grilled "Teriyaki" Chicken, Steamed Fish with Ginger Sauce, and Chef's special Curry (Option)
- Convenient transfer service available from hotels to Fish Eye Marine Park (Option)
What To Expect
The entrance gate for Fish Eye Marine Park Underwater Observatory is located in Tepungan beach which is a major part of the Piti Bay Marine Preserve near the quant village of Piti. This sea bridge crosses a broad reef flat and is a four-minute walk to the amazing undersea structure. Enjoy the sun and the breeze and Guam’s clean air as you look at divers and snorkelers heading out to the deep waters surrounding the observatory. Look over the side to see corals and fishes and amazing ocean colors. At the observatory, you will see photographs on all of the walls showing the marine life of Piti. They were taken by Guam photographer Tim Rock, an internationally published photojournalist. Walk down the intriguing spiral staircase. The walls are covered in hand-painted art of wild ocean creatures from the imagination of Japan’s famous artist. At the end of the stairs, the cool blue light of the sea pours through the windows and you can see fish and coral reefs outside. Huge windows give great views. Walk around the entire circular structure. Each window has something to offer. One may have a Nemo clownfish and its sea anemone. The other is a school of snapper or butterflyfish. Look out to the many castle corals. On the way back up, more wall art entertains you as you spiral back to the top deck. Then go outside to watch the activity from our 360-degree viewing deck. The amazing hues of emerald, blue, sapphire, and tan combine to give you an incredible view of this marine preserve’s treasures. Leisurely stroll back down the pier admiring the bay’s beauty.
Things to keep in mind
Trip Planning
Hotel Transfer
Cancelation Policy
- Access to Underwater Observatory is strolling on an ocean bridge which is around 900 feet (300m).
- There is a 72-step spiral staircase between the upper deck and the lower viewing deck in the Underwater Observatory.
- For those who prefer to stay on the upper deck, a video monitor is available to view the marine life via live feed.
- You can enjoy a 360-degree view of the reef world with 18 square & 8 round windows at a depth of around 20 feet (6m).
- Free Wi-Fi connection is available both in the Visitor Center and Underwater Observatory.
Trip Planning
- Please wear light summer clothing, pre-apply and sun screen to enjoy sea breezethe while strolling ocean bridthe ge to Observatory.
Hotel Transfer
- Hotel Transfer can be added with a minimal fee for various hotels in the Tumon and Agana bay area with advance arrangements.
- Please be at the designated meeting place 5 to 10 minutes before your scheduled pickup time.
- As this is a shared transfer, please be patient in case of unforeseen delays along the pickup route.
Cancelation Policy
- No cancellation charge applies BEFORE 5 pm on 2 days prior to the tour day
- AFTER 5 pm, 2 days prior to the tour date – a Cancellation or Reduction of participating pax will be charged 50% of the total tour fee.
- AFTER 5 pm, 1 day prior to the tour date – a Cancellation or Reduction of participating pax will be charged 100% of the total tour fee.
Basic Course 
Scroll the table left to right
| Basic Course | Session #1 |
|---|---|
| Hotel Pick up (Option) | (P-09R) |
| Pick up time | 9:30 - 10:05 |
| Check in / Activity Start Time | 10:20 |
| Brefing | 10:20 - 10:30 |
| Observatory Viewing (40 min) | 10:30 - 11:10 |
| Activity End Time | 11:10 |
| Return to Hotel (Option) | (R-11E) |
| Estimated Arrival at Hotel | 11:40 |
| Pick Up & Return Time | Select Hotel |
Pick up is by SANKO bus or FISH EYE van
With Lunch 
Scroll the table left to right
| With Lunch | Session #1 |
|---|---|
| Hotel Pick up (Option) | (P-09R) |
| Pick up time | 9:30 - 10:05 |
| Check in / Activity Start Time | 10:20 |
| Brefing | 10:20 - 10:30 |
| Observatory Viewing (40 min) | 10:30 - 11:10 |
| Lunch | 11:10 - 12:10 |
| Activity End Time | 12:10 |
| Return to Hotel (Option) | (R-12E) |
| Estimated Arrival at Hotel | 12:40 |
| Pick Up & Return Time | Select Hotel |
Pick up is by SANKO bus or FISH EYE van
Underwater Observatory Viewing
Q.Do you need to make a reservation to visit the underwater observatory?
A.No, not necessary. Walk-ins are welcomed. However, reservations are required only for those requesting hotel transfer services.
Q.What is the travel time by car, from hotels in the Tumon area to Fish Eye Marine Park?
A.Depending on the traffic and the location of the hotels, it will take approximately 15 to 30 minutes from the hotel area in Tumon or Agana Bay to the Fish Eye Marine Park.
Q.Is parking available?
A.There are free parking spaces in front of the entrance to the Fish Eye Underwater Observatory. Please do not leave valuables and personal belongings in your vehicle.
Q.What hours are the Underwater Observatory open and where may I purchase the admission tickets?
A.The Underwater Observatory is open daily from 8 am until Sunset. There is a ticket booth next to the entrance of the Fish Eye walkway bridge & Underwater Observatory.
Q.Are baby strollers allowed on the walkway bridge and inside of the Underwater Observatory?
A.Baby strollers are allowed on the walkway bridge and in the Underwater Observatory however since it is difficult to bring a stroller down and up a 72-step spiral staircase, it is recommended to leave the stroller with the attendant stationed on the upper deck.
Q.Is the walkway bridge and inside of the Underwater Observatory accessible by wheelchair?
A.The walkway bridge and the upper deck of the Underwater Observatory may be accessed by a wheelchair. There is a monitor with a live video feed from the Underwater viewing window on the upper deck.
Q.Can I access the walkway bridge to go snorkeling or diving on my own?
A.Access to the walkway bridge is allowed only for those participating in Fish Eye's guided tours.
Q.What is the depth of the Underwater Observatory window and the seafloor?
A.The depth of the lower deck observation window is 20 feet and the depth to the sea floor is 33 feet.
Q.What can we see on the bottom deck of the Underwater Observatory?
A.Over 200 species of fishes and various other marine life and coral can be seen. An exciting fish feeding session may also be observed.
Q.There are so many fishes around the Underwater Observatory. Is there a net set-up to keep the fishes captive?
A.There are no nets around the Underwater Observatory. Guests can enjoy the real underwater marine life through the viewing windows.
Q.Are there any sea turtles or other unique fish around the Underwater Observatory?
A.Sea turtles are often seen from both the lower and upper deck and also from the walkway bridge. Some barracudas wander around the observatory and at times are mistaken for a log.
Transfer Service
Q.Are transportation services available from my hotel?
A.Hotel Transfer can be added with a minimal fee for major hotels in the Tumon and Agana bay area with advance arrangements.
Q.I am staying at a Guest House, can a transportation service be arranged?
A.It is necessary to arrange an exclusive transfer service in advance with an additional fee for locations other than designated hotels.
Q.Is it possible to be dropped off from a different location than my pick-up location?
A.Yes, as long as both places are designated locations however please inform us in advance.
Q.Can I be dropped off at a shopping mall on my way back to my hotel?
A.Unfortunately none of the shopping malls are designated locations however we can assist you in arranging a taxi.
Q.Members of my group are staying at different hotels, can we arrange transportation from multiple locations?
A.Yes you may arrange for different pick-up/drop-off locations by booking separate reservations for groups staying at different hotels.
Q.I booked my reservations without the transfer service. Can I just show up at any of the designated pick-up locations?
A.For efficiency purposes the transportation bus will only stop at designated locations where pick-up service is requested. Please contact us in advance to arrange your transportation.
Booking General
Q.Are there any cancellation fees if I cancel my tour?
A.If you contact the Fish Eye Reservations office and cancel your tour by 5 pm, 2 days before your tour date, you will only be charged a refund processing fee of 5%.
Q.What are the cancellation fees if I cancel my tour after 5 pm, 2 days before my tour date?
A.* Starting 5 pm, 2 days before the tour date – a cancellation or Reduction of participating pax will be charged 50% of the total tour fee.
* Starting 5 pm on the day before the tour date – a cancellation or Reduction of participating pax will be charged 100% of the total tour fee.
Q.When do I have to make the payment for my booking?
A.An advance payment is required to book your reservations.
Piti Bay Marine Preserve is where the underwater observatory is located. It is one of Guam’s five marine preserves and also includes Tumon Bay and three others. Piti has brilliant natural color graduation. Not visible to the human eye, sunlight contains 7 different colors just like a rainbow. Because of the relationship between the color wavelength and the different depths of the ocean, the colors red, orange, and yellow get absorbed easily in the water. The color red is gone after the first ten feet, which is why underwater photographers use strobes… so they can restore that color. From our observatory outer deck, one can see amazing hues of blues. In a bay like Piti where there are large shallow areas, some colors do not get absorbed completely resulting in a broad spectrum of hues in the shallows. The color green appears on the white sandy ocean floor, dark brown spots are seen where there are coral heads and the color blue will appear in a wide array of shades in the deeper portion of the observatory’s location. This is the reason Piti Bay is, no doubt, one of the most beautiful places on the island. When you stroll on the pier walkway heading to the observatory tower, don’t miss the opportunity to enjoy the amazing artistry created by our wonderful Mother Nature.
- Prepaid Discount Ticket - Fish Eye Underwater Observatory in Piti Bay Marine Preserve
Regular PriceAdult (12yrs & up): $16.00Child (6-11yrs): $8.00Early Bird Price – 3-day (by 17:00) advanced bookingAdult (12yrs & up): $14.00Child (6-11yrs): $7.00
- MOST POPULAR! Observatory with Lunch package - Fish Eye Underwater Observatory in Piti Bay Marine Preserve
Regular PriceAdult (12yrs & up): $34.00Child (6-11yrs): $17.00Early Bird Price – 3-day (by 17:00) advanced bookingAdult (12yrs & up): $30.00Child (6-11yrs): $15.00
Price effective from APR 1, 2023 to MAR 31, 2024
starting from US$16
US$14 per adult
Highly Recommended
on TripAdvisor
on TripAdvisor
