STUART ECO TOUR FIELD GUIDE
By Pontoon to an Untouched Atlantic Beach: A Three‑Hour St. Lucie Inlet Preserve Cruise
A 3-hour pontoon excursion from Hutchinson Island Marriott Marina that includes a ranger‑led ¾‑mile boardwalk hike onto an undeveloped Atlantic beach — essential planning details for prospective visitors.
By Pontoon to an Untouched Atlantic Beach: A Three‑Hour St. Lucie Inlet Preserve Cruise.
Adventure brief
By Pontoon to an Untouched Atlantic Beach: A Three‑Hour St. Lucie Inlet Preserve Cruise
Board the pontoon Sweet Caroline at the Hutchinson Island Marriott Marina for a scenic cruise along the Indian River, then step ashore for a ranger‑led, interpretive ¾‑mile boardwalk hike that opens onto an undeveloped Atlantic beach. After the shore visit, return to the boat for a relaxing sightseeing cruise along the Indian and St. Lucie Rivers; reservations are required for this exclusive access to St. Lucie Inlet Preserve State Park.
Experience the serene beauty of Florida’s coastal waters with the Public St. Lucie Inlet Preserve Nature Cruise offered by Treasure Coast River Cruises. This peaceful boat adventure takes you through the protected waters of the St. Lucie Inlet Preserve, a unique estuary ecosystem just off the coast of Stuart, Florida. Along the way, you’ll enjoy close-up views of mangroves, oyster bars, and sandy beaches while spotting a variety of native wildlife such as dolphins, manatees, and shorebirds. The calm waters make this cruise perfect for all ages and skill levels, allowing you to relax and soak in the natural surroundings. Knowledgeable guides onboard will share interesting facts about the local ecosystem, conservation efforts, and the cultural history of the area, enriching your connection to this special region. Whether you're a nature enthusiast, a first-time visitor, or looking for a peaceful escape, the St. Lucie Inlet Preserve cruise offers a refreshing way to experience Florida’s coastline from the water.
Route Schematic
Route & Stops
Key stops along the three‑hour route combine short onshore interpretation with river sightseeing.
Boarding at Hutchinson Island Marriott Marina
Board the Sweet Caroline at the Hutchinson Island Marriott Marina and cruise south down the Indian River.
St. Lucie Inlet Preserve State Park — Ranger‑Led Hike
Dock at the preserve and begin a ranger‑led ¾‑mile boardwalk hike that leads out to an undeveloped Atlantic beach.
Return Along the Boardwalk and Sightseeing Cruise
Return along the boardwalk to the boat, then enjoy a relaxing sightseeing cruise of the Indian River on the way back to the Marriott Marina.
You must remain with the group during the park tour, and the preserve is accessible only by watercraft; reservations are required and access is dependent on the boat operator's schedule.
Highlights
Outing Highlights
Pristine, undeveloped coastal wilderness
St. Lucie Inlet Preserve State Park is one of Florida’s truly wild coastal landscapes — pristine mangroves, ancient coastal hammocks and a stretch of Atlantic beach with no development or crowds; the only way in is by watercraft, which preserves its sense of escape.
Pontoon cruise and ranger‑led boardwalk hike
Guests board the Sweet Caroline at the Hutchinson Island Marriott Marina, cruise down the Indian River, dock at the preserve, and join a ranger for a ¾‑mile interpretive boardwalk hike out to an undeveloped beach before returning to the boat.
An experience that supports the park
This excursion is offered through a partnership with the Florida Department of State Parks; the water‑only access helps keep the preserve wild, and a portion of each fare goes directly back to supporting the park and its ecosystems.
What the day feels like
What the cruise feels like
The flow is deliberate and unhurried: board at the Hutchinson Island Marriott Marina, glide south along the Indian River to the preserve, step ashore for a ranger‑led boardwalk hike to a pristine Atlantic beach, then return to the pontoon for a leisurely sightseeing passage along the Indian and St. Lucie Rivers before coming back to the marina.
Suitability
Who it's for
Who this trip suits — and who should consider alternatives.
Practical planner
Details to review before reserving
This is a three‑hour excursion; reservations are required.
Meet in Stuart, FL — guests board the Sweet Caroline at the Hutchinson Island Marriott Marina.
The preserve is accessible only by watercraft and guests must remain with the group during the park tour.
Review cancellation policies before reserving.
Frequently asked questions
Planning Your Outing
How long is the cruise?
The excursion is three hours long.
Where do we meet and board the boat?
Meet in Stuart, FL and board the pontoon Sweet Caroline at the Hutchinson Island Marriott Marina.
Is there a hike included?
Yes — the trip includes a ranger‑led ¾‑mile boardwalk hike to an undeveloped Atlantic beach.
Can I access the preserve by land?
No — the preserve is accessible only by watercraft.
Do I need to make a reservation?
Yes — reservations are required for this excursion.
How this guide was prepared
This field guide is synthesized using verified supplier specifications, route descriptions, and destination data. Some booking links may generate affiliate revenue for ADV Guides.
- Verified: 2026-08-13T02:55:36.859Z
Some booking links may generate revenue for ADV Guides or The Adventure Collective.
Availability, pricing, schedules and operating details can change.
Trip details and contextual sources were reviewed by ADV Guides Editorial.