Underwater Observatory & Coconut Experience in Guam

Learn to grate coconut beside a waterfall, then descend to watch reef life through an underwater dome.

The Underwater Observatory & Coconut Experience in Guam combines a hands-on coconut lesson with access to a submerged viewing chamber 20 feet below the surface. You grate fresh coconut, taste the juice and meat, explore the tropical garden with entertainers, and then descend to see marine life through 26 windows offering 360° reef views. The activity runs roughly three hours and welcomes all ages. Lunch and transportation are optional add-ons at checkout.

Step-by-step itinerary

Coconut experience and underwater observatory

• Check in at Fish Eye Visitor Center
• Experience coconut grating and tasting
• Enjoy drinks of fresh coconut juice and meat
• Watch marine life from upper deck live video
• Explore underwater observatory with 360° reef views

The experience

You start at the Fish Eye Visitor Center, where a guide and entertainer walk you through the coconut from harvest to table. The hands-on part is real: you learn to grate the meat and extract the milk yourself, then drink fresh juice and eat the soft flesh beside an artificial waterfall. The tropical garden gives you a chance to pose for photos with the entertainers, and the images upload instantly via free Wi-Fi so you can share them as you go.

After the coconut lesson, you head to the Underwater Observatory. The chamber sits 20 feet below the surface and has 26 windows built into its walls, giving a full 360° view of the reef. You can watch a live video feed from the upper deck if you prefer to stay dry, or descend into the observatory itself to see the marine life up close through the glass. The setup means you get the reef without needing to dive or snorkel.

Pickup and lunch are both optional: you can book the activity alone, add hotel transportation, add a buffet lunch with vegetarian choices, or combine both. A 10% service charge applies to any food you order at the restaurant. All ages are welcome, and the site is wheelchair accessible, though not all bus transfers accommodate wheelchairs. Contact ahead if you need special arrangements.

What’s included

• Coconut juice and meat.
• dessert.
• photo time in the tropical garden with free Wi-Fi upload.
• access to the Underwater Observatory with 360° reef views through 26 windows.
• a live English-speaking guide throughout the activity. Lunch and hotel transportation are available as optional add-ons at checkout.

Options for this experience

4 options

Standard, without transportationGuide in English · 09:20 and 10:20

Standard with TransportationGuide in English · 09:20 and 10:20Bus or van: the van may be run by Fish Eye Marine Park, and the bus or van by Sanko Enterprises Company. Pickup is included.

Includes lunch, without transportationGuide in English · 09:20 and 10:20

Includes lunch and transportationGuide in English · 09:20 and 10:20

You'll see the exact price of each option when you check availability.See dates and prices

Before you book

Days and timesEvery day except WednesdayDepartures at 09:20 and 10:20

AgesAdult (21 and older) · Youth (12 to 20 years) · Child (4 to 11 years) · Infant (under 4): free

GroupUp to 15

Live guideEnglish

Meeting point and pickupHotel pickup is optional; you can also go straight to the meeting point. Ends back at the starting point.You can choose from 14 pickup points.

Cancellation and refundsFree cancellation up to 24 h before the start. After that, no refund.It may be canceled due to bad weather or if the minimum number of travelers isn't reached. If that happens, you're offered another date or a refund.

ConfirmationConfirmation within 48 h

Prices and times updated 2 days ago

Good to know

Low physical effortWheelchair accessibleStroller-friendlyPets welcomePublic transport nearbyInfants must sit on laps

Operated by Fish Eye Marine Park

Is this one for you?Book without transportation if you have your own ride to Fish Eye Visitor Center, or add pickup to your option at checkout for hotel delivery. Choose the lunch add-on if you want to eat on-site. Otherwise, the activity includes juice, meat and dessert but no full meal.

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Top questions

Can children come?

Yes. Ticket types: Youth (12 to 20 years); Child (4 to 11 years); Infant (under 4): free.

What happens if it rains?

It may be canceled due to bad weather. If that happens, you're offered another date or a refund. Free cancellation up to 24 h before the start.

What exactly do you do during the coconut part of this activity?

You learn to grate fresh coconut meat and extract the milk by hand, guided by an entertainer at the Fish Eye Visitor Center. You taste the juice and soft flesh, and the lesson takes place beside an artificial waterfall in the tropical garden.

How deep is the Underwater Observatory and what will I see there?

The observatory sits at 20 feet (6 meters) below the surface and has 26 windows offering 360° views of the reef. You watch marine life through the glass. You can also view a live video feed from the upper deck if you prefer to stay above water.

Do I need to book transportation and lunch, or can I do the activity alone?

Both are optional. You can book the activity without either, add hotel pickup for an extra cost, add a buffet lunch with vegetarian options, or combine transportation and lunch at checkout.

How long does the whole experience take?

The activity runs approximately three hours from start to finish, including the coconut lesson, garden time and the underwater observatory visit.