Skip to main content
Menu close text
Marriott Logo
Marriott Logo
Help

Select a Language

English(US)

The St. Regis Longboat Key Resort

The St. Regis Longboat Key Resort

VIEW MAP VIEW MAP
+1 941-231-1000
Cancel
DATES (1 NIGHT) NIGHTS)
Flexible in
S M T W T F S
Number of Nights
1
Rooms & Guests
Maximum 8 guests per room
Rooms
(Max: 3 Rooms/person)
1
Adults
(Max: 8 total guests/room)
1
Children
(Max: 8 total guests/room)
0
AGE OF CHILDREN (REQUIRED)
Special Rates
  • Lagoon in Florida
Credit Card
Earn 3 Free Nights + 50,000 Bonus Points
Learn More

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.

adventures with sting rays florida

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 Children's Activity

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
snorkel experience florida

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
Under the Sea Lagoon in Longboat Key FL
Under the sea lagoon in Florida
Under the Sea Lagoon Florida
    /
    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.

    Lagoon Swimming
    interactive lagoon with sting rays florida
    sting rays in florida
    Lagoon Children's Activity
      /

      Unrivaled Aquatic Adventure

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

      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.
      Snorkel and Lagoon experience Florida

      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.

      On-Site Outlets

      total experiences (1)

      Under the sea lagoon in Florida

      Reef Rangers Children's Club

      Book

      © 1996 – 2026 Marriott International, Inc. All rights reserved. Marriott Proprietary Information

      English
      Careers Opens a new window Terms of Use Program Terms & Conditions Privacy Center Digital Accessibility Sustainability in the Supply Chain Site Map Hotel Site Map Help Opens a new window