Free Concierge Service
    Text or call (650) 414-7338
    Ask AIAI
    Ask AIAI
    1. Local experiences/
    2. Things to do in Marathon…/
    3. Water Activities/
    4. Snorkeling/
    5. Snorkel Sombrero Key Light Reef From Marathon
    Why travelers choose Greetwell

    Curated by our team

    Every experience is hand selected and approved by Greetwell.

    Personal concierge

    Real humans available to help before, during, and after your booking.

    Intimate & authentic

    Including unique in-home experiences you won't find anywhere else.

    Easy booking & cancellation

    Reserve in minutes with free cancellation on most experiences.

    Greetwell

    Experiences that stay with you long after the trip

    Greetwell curates authentic local experiences and provides personal concierge support in over 500 destinations, helping you explore confidently wherever you go.

    About

    • Our Story
    • For Experience Providers
    • For Hospitality Partners
    • For Developers

    Concierge Support

    • Help Center
    [email protected](650) 414-7338

    Safe & Secure Payments

    © 2026 Greetwell, Inc. All rights reserved.
    Privacy PolicyTerms
    Product image 1
    Product image 2
    Product image 3
    Gallery image
    Gallery image 2
    Gallery image 3

    Snorkel Sombrero Key Light Reef From Marathon

    Snorkel Sombrero Reef with gear included on the Marathon Mermaid

    5.0 stars• 3.6K reviews
    From$101/ personincl. taxes and fees

    Duration

    3 Hours

    Ideal For

    Up to 42 people

    Includes

    Snorkel gear, snacks, drinks

    Highlights

    Snorkel Sombrero Key Light Reef on a 3-hour trip aboard the Marathon Mermaid. Cruise out to the protected reef, explore with provided equipment, then relax on the ride back with snacks and drinks.

    • Cruise to Sombrero Key Light Reef from Marathon
    • Snorkel with top-rated equipment provided on board
    • Relax on a comfortable boat with shaded seating and a bathroom
    • Bring your own snacks and drinks (no glass or hard alcohol)
    • Choose a private charter option when available

    What's Included

    • Snorkeling equipment
    • Snorkel vest
    • Pool noodles
    • Reef-safe sunscreen
    • Water
    • Soda
    • Light snacks

    Things to know

    You must be able to swim independently to snorkel; non-swimmers must stay on the boat. Full-faced masks are not permitted. Gratuity is not included.

    Cancellation Policy

    For a full refund, cancel at least 48 hours before the excursion. If the operator cancels due to weather or other unforeseen circumstances, you will receive a full refund. If the minimum of 10 passengers is not met, you can be rescheduled or refunded. No-shows are charged the full price.

    FAQs

    Yes. You must be able to swim independently to get in the water and snorkel. Non-swimmers must stay on the boat.

    Yes. All children must be accompanied by an adult while snorkeling in the water.

    Yes, you may bring your own mask, snorkel, and fins. Full-faced masks are not permitted.

    Meeting details

    Bluegreen Vacations, 1688 Overseas Highway

    Experience provided by Marathon Mermaid
    Experience provided by Marathon Mermaid

    Related locations

    How can we help?

    We are here to assist with special requests, large groups, last minute needs, and any questions you may have.

    Call or text (650) 414-7338

    Report an issue

    Reference #NFSQGN

    Adult

    $101.85

    Ages 18+

    0

    Child

    $101.85

    17 & Under

    0

    Rider

    $82.89

    Guests on the boat that will not be snorkeling

    0

    Infant

    $71.04

    3 & Under

    0

    Private Charter

    $4,305.60

    Up to 42 People

    0

    Why book through Greetwell?

    • No Added Fees

      No booking or service fees, ever

    • Concierge Support Included

      Real humans ready to help with timing, questions, or special requests

    • Free Cancellation Available

      Most experiences can be cancelled for a full refund

    Discover what we've curated for you

    Nearby activities

    Thumbnail
    Snorkeling

    Snorkel, Snuba & Scuba Trip to Sombrero Reef

    From$202/ person
    Thumbnail
    Fishing ChartersUp to 6

    8-Hour Private Fishing Charter in Marathon

    $1,484
    Thumbnail
    Snorkeling

    Snorkel Coffins Patch Reef & Swim Valhalla Sandbar

    $146.83/ person
    Thumbnail
    SnorkelingUp to 29

    Private 3.5-Hour Reef Snorkel & Sandbar Swim in Marathon

    From$2,950
    Thumbnail
    Snorkeling

    Trifecta: Snorkel, Sandbar, Sunset

    $160.29/ person
    Thumbnail
    SnorkelingUp to 39

    Snorkel, Sandbar & Sunset Charter in Marathon

    From$3,967