easy
1–2 hours
Suitable for most fitness levels, especially with casual swimming and climbing
Looking for a high-energy water activity in Marathon? Discover the floating fun of The Lagoon on Grassy Key, with trampolines and climbing walls perfect for all ages. Dive into this unforgettable aqua adventure today!
Experience the thrill of our massive floating playground at The Lagoon on Grassy Key! With floating trampolines and towering climbing walls, challenge friends or tackle the course solo. Perfect for all ages, this aqua park adventure promises unforgettable fun and excitement on a hot day. Join us for an exhilarating splash!
1 session $35 2 sessions $45 All day pass $80
Jump, climb, and slide your way through the twists and turns of our massive floating playground, which features everything from floating trampolines to towering climbing walls. Challenge your friends and family to a race along the course or take on the obstacles solo for an extra adrenaline rush. Whether you're a seasoned athlete or just looking for a fun way to cool off on a hot day, our aqua park obstacle course has something for everyone. So come splash, slide, and conquer your way to an unforgettable adventure at The Lagoon on Grassy Key!
Sessions start on the hour and last 50 minutes.
Participants must be at least 6 years old.
Participants must be signed up and checked in at least 30 minutes prior to their session.
For safety, wear water shoes or non-slip sandals to prevent slipping on wet surfaces.
Arriving earlier helps beat the crowds and secures your spot on the floating platform.
Bring plenty of water to stay hydrated during energetic activities under the sun.
Ensure kids are supervised closely around water and floating structures for safety.
The Florida Keys have a rich maritime history, with many islands once serving as key points for shipping and exploration.
Efforts are in place to protect local reefs and marine life, ensuring that activities like visiting The Lagoon have minimal ecological impact.
A comfortable swimsuit is essential for enjoying the trampolines and water activities comfortably.
summer specific
Provides grip and protection against slips or sharp objects on the floating platform.
summer specific
Protects your skin while soaking up the sun during active water fun.
spring|summer|fall|winter specific
Dry off quickly after splashes and shifts between activities.
all specific