Enjoy a durable floating water mat for family time on the water
1 day
Lilly Pad Mat
Float on a large, durable Lily Pad water mat designed for time on the water. Enjoy a simple option for individuals and families.
Full refund for cancellations more than 72 hours before the first rental day. 50% refund for cancellations 48–72 hours before. No refund within 48 hours. This applies to all named storm events.
Product ID: JNN49H
Bring anything you need for your time on the water. A convenience store is available on site, with equipment available to buy or rent if needed.
Grassy Key Marina
Shane and his crew have built a solid reputation for making boat and watercraft rentals genuinely enjoyable in the Marathon area. Families consistently highlight the spacious, well-maintained boats, and guides like Dave and Jason bring real local knowledge to the experience, pointing out sandbars, snorkeling spots, and marine life encounters that turn a simple rental into something memorable. The jet ski tours in particular have earned some enthusiastic reviews, with dolphin and manatee sightings adding to the excitement. That said, a handful of reviewers have experienced last-minute cancellations due to boats being out of service, which is worth keeping in mind when planning around a tight schedule. These situations appear to be mechanical or availability-related rather than the norm, and most customers describe the overall process as smooth and stress-free. If flexibility is important to your trip, it may be worth confirming your booking closer to the date. For families or groups looking to explore the Keys from the water, this is a well-regarded option with knowledgeable, personable staff who genuinely seem invested in making the day a good one.
Paddle calm, shallow waters with glass-bottom views of illuminated marine life
Snorkel Sombrero Reef with gear included on the Marathon Mermaid
Sunset views of Boot Key Harbor and Seven Mile Bridge from the water
Shape your fishing day around reef, wreck, or offshore waters
Choose reef, wreck, ledge, or drift dives with gear and a guide included
Watch the sunset over Seven Mile Bridge from the water