Discover our hotel with an aquarium in Longboat Key

Under the Sea Lagoon

Dive into an unforgettable adventure at our hotel with an aquarium in Longboat Key. Led by expert marine aquarists, our Under the Sea Lagoon Experiences place you face-to-face with graceful rays, marvel at colorful tropical fish, and immerse yourself in a tranquil aquatic environment suitable for all swimming abilities. Along the way, your marine aquarist will reveal captivating facts about the local marine ecosystem and the importance of sustainable conservation efforts.

Close Encounters

Set off on an aquatic adventure with an extraordinary Under the Sea Lagoon experience at our hotel with a lagoon in Longboat Key. Snorkel through vibrant coral reefs teeming with marine marvels, from graceful rays to rainbow-hued tropical fish.

Book Now

Under the sea lagoon Longboat Key Florida

Educational Moments

We celebrate every day at the Lagoon Viewing window, an educational moment hosted by one of our Resort Aquarists. Learn about the Under the Sea Lagoon’s ecosystem, the stingrays and all the different kinds of local fish.

Tortoise Time

Back on dry land, meet our resident Aldabra tortoises, gentle giants who are one of the world’s largest species of tortoise and among the longest-lived animals on the planet.

Become a Member of The St. Regis Longboat Key Resort

Becoming a member of The St. Regis Longboat Key Resort envelops you in a world of rarefied elegance, where bespoke service, exclusive beachfront privileges, and ultra‑luxury amenities create a lifestyle of effortless sophistication. Join us.

Discover More

Under the Sea Lagoon Experience

Discover the vibrant underwater world at our hotel with a lagoon in Longboat Key. This unique adventure not only enhances your stay but also fosters a deeper understanding and connection with the delicate marine environment.

Learn More

LAGOON LUMINARIES' FUN FACTS

Porcupine Puffer Fish

We have 3 puffer fish named Alvin, Simon, and Theodor, and after the Cartoon series from 80’s Alvin & the Chipmunks

Southern Stingray

The stingrays can grow to a wing span of 4’-5’ and weigh up to 200 pounds and females are larger than males

Queen Angel Fish

Mature Queen Angelfish can release as many as 10 million eggs in a single spawning season.

Marine Environment

Experiences at our hotel with an aquarium in Longboat Key are led by an marine aquarist who will share fascinating insights about the local ecosystem, marine life, and sustainable practices.

interactive lagoon with sting rays florida

Unrivaled Aquatic Adventure

Feel the exhilaration of swimming alongside these beautiful creatures in their habitat, as you briefly become part of their world.

Perfect for All Ages

The Under the Sea Lagoon Experience is perfect for swimmers of all skill levels. Guests 8 and older can join the snorkel experience, with children under 8 participating in the stingray portion.

Memories for the Whole Family

Designed with families in mind, our hotel with a lagoon in Longboat Key offers engaging activities and thoughtful hospitality, creating a vibrant destination where play and togetherness are celebrated.