Valhalla Tour — Paddle Marathon’s Mangroves Out to Grassy Key’s Sunlit Sandbar

MARATHON BOAT RENTAL FIELD GUIDE

Valhalla Tour — Paddle Marathon’s Mangroves Out to Grassy Key’s Sunlit Sandbar

A four-hour guided paddle departing Coco Plum Beach that threads mangrove shorelines to a multi-mile sandbar rich with dolphins, turtles and shallow-water marine life — this guide lays out the route, logistics, and what to pack.

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Valhalla Tour — Paddle Marathon’s Mangroves Out to Grassy Key’s Sunlit Sandbar.

Duration
4 Hours
Location
Marathon
Operator
Gorillaboats
Category
Boat Rental
Robert Eric Crews
Founder & Editor, The Adventure Collective
Published Verified

The Valhalla Tour is a four-hour guided paddle that launches from Coco Plum Beach in Marathon and moves along the ocean’s edge through lush mangrove corridors to the Grassy Key Valhalla Sandbar. Along the way guides point out coastal habitat and marine life—dolphins, turtles and seabirds—and lead participants to a long, shallow sandbar where you can spend a couple of hours wading, sunning and exploring before returning to the beach.

Highlights

Outing Highlights

THE ROUTE

A short coastal paddle to a several-mile sandbar

The outing follows the shoreline from Coco Plum Beach past mangroves and waterfront homes to the Grassy Key Valhalla Sandbar — a several-mile sandbar reached by roughly a 30–45 minute paddle from the beach.

THE WILDLIFE

Dolphins, turtles and a vibrant underwater community

Above and below the surface the waters teem with life: playful dolphins and seabirds in the canopy are common sights, while a variety of fish, turtles and other marine creatures populate the shallows you pass through and explore.

THE SANDBAR

Hours of shallow-water play on pristine sand

Once at the Valhalla Sandbar you typically have 2 to 2.5 hours to wade, sunbathe and investigate sand-flat life—small crustaceans and tide-pool visitors make the sandbar a low-key, wildlife-rich destination.

What the day feels like

How the day unfolds

Guides greet the group at Coco Plum Beach and offer a short orientation before you set off paddling along the mangrove-lined shoreline. The crossing to Grassy Key is a coastal glide punctuated by wildlife sightings; once ashore you spend significant time exploring the shallow sand and warm shallows, then paddle back to Coco Plum Beach to close the four-hour loop.

Suitability

Who it's for

Who this outing works best for — and who should take extra care.

1
Active day-trip familiesSuitable for groups who can manage a short paddle and time on shallow sand; families should note general safety guidance and operator weight limits.
2
Wildlife watchersA good match for people focused on coastal wildlife viewing — the route repeatedly presents dolphin, turtle and seabird sightings in nearshore waters.
3
Beginner paddlersApproachable for novices given the guided format, though participants must be comfortable with paddling and following guide instructions and weight limits for watercraft.
4
Expectant travelers or those near craft weight limitsIf you are expecting, consult your physician before joining; always adhere to the watercraft’s weight restrictions and contact the operator for guidance if you have concerns.

Practical planner

Details to review before reserving

Duration

The Valhalla Tour is a four-hour outing.

Meeting point

Meet at Coco Plum Beach, Marathon, FL 33050 for orientation and launch.

What to bring

Bring sunglasses, water, sunscreen, water shoes, towels and snacks.

Health & safety

Consult your physician if you are expecting, and follow all watercraft weight limits; call 3058494070 if you need assistance.

Booking Notice

Review cancellation policies before reserving.

Frequently asked questions

Planning Your Outing

How long is the Valhalla Tour?

The experience lasts four hours.

Where do we meet?

The tour meets at Coco Plum Beach in Marathon, FL (Coco Plum Beach, Marathon, FL 33050).

How much time will we spend on the sandbar?

You will typically have about 2 to 2.5 hours to explore and relax on the Grassy Key Valhalla Sandbar.

What should I bring for the trip?

Pack sunglasses, water, sunscreen, water shoes, towels and snacks.

Are there health or weight restrictions?

If you are expecting, consult your physician before joining; also adhere to all watercraft weight limits and contact 3058494070 if you need assistance.