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    MarineLab Undersea Park

    MarineLab Undersea Park

    5.0 • 3 reviews
    Key Largo, FL

    MarineLab Undersea Park invites guests to discover Key Largo’s underwater world through hands-on, science-inspired adventures. Home to Jules’ Undersea Lab, the world’s only undersea research station open to the public, the park of...

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    Book MarineLab Undersea Park

    Addon image

    Key Largo Marine Biologist Snorkeling Tour

    Explore a mangrove lagoon with a marine biologist as your guide

    $60.16person
    Addon image

    3-Hour Guided SCUBA Tour of Jules' Undersea Lab

    Dive into Jules’ Undersea Lab with a Mission Director

    $124.85

    What people are saying

    Review 1 of 3
    5/5

    I highly recommend their individual program for adults with no experience in snorkeling.. My wife and I had a wonderful afternoon learning the basics. We had always been interested but so many places in the Keys hand you a mask, snorkel and fins then say have fun. Our instructor (a marine biologist) was very patient and made sure we had everything we needed including a wet suit since the water was cold. Went through the basics and then told us what we would see in the sheltered lagoon. She also got water samples and put slides under a microscope. She brought out examples of starfish and other organisms that we might see. So not only did we get a basic lesson we learned a great deal about marine life in the keys.

    Photo of Mark Wilkinson

    Mark Wilkinson

    January 15, 2026

    Review 1 of 1
    5/5

    I highly recommend their individual program for adults with no experience in snorkeling.. My wife and I had a wonderful afternoon learning the basics. We had always been interested but so many places in the Keys hand you a mask, snorkel and fins then say have fun. Our instructor (a marine biologist) was very patient and made sure we had everything we needed including a wet suit since the water was cold. Went through the basics and then told us what we would see in the sheltered lagoon. She also got water samples and put slides under a microscope. She brought out examples of starfish and other organisms that we might see. So not only did we get a basic lesson we learned a great deal about marine life in the keys.

    Photo of Mark Wilkinson

    Mark Wilkinson

    January 15, 2026