If you’re looking for a lively, splash-filled activity during your Florida trip, the Rhum Runner Aqua Park at The Lagoon on Grassy Key might catch your interest. While I haven’t personally tried it, reviews suggest it’s a solid choice for anyone craving some fun on the water—especially if you enjoy challenges and plenty of movement.
What I find particularly appealing about this experience is its affordable price point of $38 per person for nearly an hour of entertainment. Plus, it’s set on a sprawling floating playground that promises plenty of opportunities to jump, climb, and slide. On the flip side, one thing to keep in mind is that participants need to be at least 6 years old, so it’s not suitable for small children or toddlers. This makes it a great pick for active families with older kids or groups of friends wanting a bit of an adrenaline rush.
If you’re someone who enjoys outdoor water fun and doesn’t mind getting a little wet and energetic, this could be right up your alley. It’s less about relaxing and more about thrilling physical activity—a good break from the usual beach lounging.
Key Points

- Designed for thrill-seekers and water fun lovers with a variety of obstacles and slides
- Affordable at $38 per session, offering good value for active entertainment
- Sessions last 50 minutes, starting on the hour, giving plenty of time for splashy fun
- Participants must be at least 6 years old; check-in is 30 minutes before your session
- Includes entry to the floating playground only, no additional costs for equipment or extras
- Friendly staff and a clean facility are noted positives, contributing to a safe, welcoming environment
What to Expect at the Rhum Runner Aqua Park

This floating playground is essentially a giant obstacle course right on the water. You can picture yourself jumping onto floating trampolines, climbing up towering walls, or racing along twisting slides that add a dash of adrenaline. We loved the way the course offers a mixture of challenges—so whether you’re an athletic type or just looking to have a good time splashing around, you’ll find something that suits your style.
The setup is straightforward: sessions are limited to 50 minutes, starting on the hour, which keeps the group small enough to avoid overcrowding and allows everyone a solid chunk of time to enjoy. The environment is described as well-maintained with friendly staff, which plays a big role when you’re dealing with water-based activities—safety and cleanliness are key.
From a practical standpoint, you’ll need to sign up and check in at least 30 minutes prior at the Saloon Surf Shoppe. This early check-in helps streamline the process, especially if you’re trying to fit this into a busy day of sightseeing or other activities.
Planning more time in Marathon Florida? We've covered other experiences worth considering.
The Experience in Detail

Once you’re signed up, the fun begins as you step onto the floating playground. Imagine stepping onto a series of connected buoys—imagine the slight wobble as you walk, adding a bit of thrill right from the start. The trampolines are a real highlight, perfect for bouncing high before attempting to conquer the obstacles ahead.
One of the most notable aspects of this activity, according to reviews, is the kindness and friendliness of the staff. As BJ from the US mentions, “The employees were all very friendly & the facility was nice & clean.” Small touches like helpful staff can make a big difference, especially when dealing with water activities.
The obstacles themselves are designed for fun but also challenge your agility and balance. Climbing towering walls or sliding down chutes provides a real adrenaline hit. For those racing friends or family members, the course offers a chance to test your speed and agility—you might find yourself laughing as much as racing.
One real-life story from a visitor notes an unexpected hiccup: BJ’s son lost his Apple Watch while playing. Thankfully, everyone’s eagerness to help was evident, even strangers, which speaks to the friendly atmosphere. The water’s depth and silt, however, posed a challenge for retrieving the lost item, highlighting that water safety and awareness are always important.
Is It Worth the Price?

At $38 for a 50-minute session, many will find this to be a pretty good deal—especially when compared to other water-based attractions. The cost mostly covers access to the floating playground itself, with no hidden fees. For the thrill of climbing, sliding, and bouncing, it’s reasonable, especially if you’re in the mood for active fun.
Keep in mind, if you plan to do multiple sessions or want an all-day experience, that might add up. But for a single session, it’s a straightforward expense for a significant dose of water-based excitement.
Who Should Consider This Tour?

This adventure suits those who love water activities with a bit of a challenge. It’s ideal for older kids, teenagers, or groups of friends looking for fun and a bit of physical exertion. It’s not suitable for children under 6, so families with younger kids will need to look elsewhere.
If you’re someone who appreciates a friendly, relaxed environment while still seeking a good dose of adrenaline and splashy fun, you’ll likely enjoy your time here. It’s perfect for a quick, energetic break from lounging at the beach or exploring nearby attractions.
More Great Tours NearbyFinal Thoughts
The Rhum Runner Aqua Park offers a lively, budget-friendly option for anyone eager to get their blood pumping in a playful water environment. Its straightforward setup, friendly staff, and well-maintained facilities make it a safe and enjoyable choice. It’s especially suited for those who don’t mind getting a little wet and are looking for an active, fun challenge.
While it’s not a place for small children or those seeking a relaxing float, it’s a top pick for adventure-seekers and groups wanting to add some variety to their beach day. With a good balance of excitement and accessibility, it’s a solid way to spend part of your time in the Florida Keys.
Marathon: Rhum Runner Aqua Park Adventure
FAQ

How long does a session last?
Each session is 50 minutes long, starting on the hour. This gives you plenty of time to splash around, challenge yourself, or race friends.
What is included in the price?
Your ticket grants access to the floating playground. There are no additional fees mentioned, so you can expect to use all the obstacles and slides included.
Do I need to sign up in advance?
Yes, you should sign up and check in at least 30 minutes before your scheduled session at the Saloon Surf Shoppe to ensure your spot.
Is it suitable for children?
The minimum age to participate is 6 years old, so it’s geared towards older kids, teenagers, and adults. Younger children should look for other options.
What should I wear?
While the data doesn’t specify clothing, typically for water parks, swimwear is recommended. Be prepared to get wet, and consider bringing a towel and dry clothes.
Can I cancel my booking?
Yes, cancellations are accepted up to 24 hours in advance for a full refund, offering some flexibility if plans change.
If you’re craving active water fun and don’t mind a little splash of chaos, the Rhum Runner Aqua Park is worth considering. It’s a straightforward, affordable way to add some thrill and laughter to your day in the Florida Keys.
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