About Us

About the aquarium

A place to learn, discover and connect with Guam’s living waters For more than 25 years, the Aquarium of Guam has been part of life on the island — a place where people come to explore, learn, and spend time together in the heart of Tumon. First opened in 1999, the aquarium has welcomed residents, students, military families and visitors from around the world. At its centre is the iconic walk‑through tunnel, where visitors are surrounded by sharks, rays and tropical fish — an experience that has inspired generations.

Today, the aquarium is being reimagined for a new generation, with renewed exhibits, stronger storytelling and a deeper connection to the natural waters that make Guam unique.

A place with deep roots in Guam

Originally opened as UnderWater World Guam, the aquarium quickly became more than a visitor attraction. It became part of growing up on the island.

For many people in Guam, their first visit happens as a child — often through a school excursion. These early experiences introduce the Guam marine life and ecosystems of the island’s waters in a way that is direct, engaging and memorable.

Over time, those visits continue with family and friends. The aquarium becomes familiar — a place people return to, and a place that holds lasting memories.

Explore our story

From its opening in 1999 to its current transformation, the Aquarium of Guam has continued to evolve while remaining an important part of island life.

Across more than two decades, it has supported tourism, marine education and community connection — while welcoming visitors from across the Pacific and beyond.

Visit our timeline page to explore the key milestones that have shaped the aquarium’s journey

A place for many different people

The Aquarium of Guam holds a unique place on the island because it serves many different audiences — each in its own way.

For The People Of Guam

A familiar place of leisure and connection — part of everyday life and shared experiences.

For Students And Schools

A place where young people begin to understand the marine life and environments that surround their island.

For The Military Community

A welcoming and accessible experience for families and visiting personnel, offering time to relax and explore together.

For Visitors To Guam

One of the most popular things to do in Guam, offering visitors an immersive way to experience Guam’s marine life up close regardless of weather.

For Guam’s Tourism Industry

An important attraction that strengthens the island’s visitor experience and adds depth to what Guam offers.

What we stand for

The Aquarium of Guam is dedicated to celebrating the island’s aquatic environments and the life they support. Through a connected journey, visitors discover how freshwater systems, coastal habitats, coral reefs and the open ocean are all linked — forming the natural foundation of life on and around Guam.

At the same time, Guam’s premier aquarium remains a place of enjoyment. It is designed to be welcoming and memorable, where people of all ages can explore, learn and spend meaningful time together.

Our Values

Mission

The Aquarium of Guam offers residents and visitors an engaging and informative journey through the island’s aquatic habitats—freshwater, coastal and marine—revealing the beauty, diversity and interconnectedness of Guam’s marine life, while creating enjoyable and memorable experiences for all ages.

Meet the team

Behind the Aquarium of Guam is a dedicated team working every day to care for the animals, support visitors and deliver a safe and enjoyable experience.

From animal care specialists to educators and guest services teams, each person plays a role in bringing the aquarium to life.

Visit our team page to learn more about the people behind the experience.

Careers

The Aquarium of Guam offers opportunities for people interested in marine life, education, tourism and visitor experiences.

Working here means contributing to a place that supports learning, inspires curiosity and brings people closer to Guam’s natural environment.

Visit our careers page to explore current opportunities.