Wake to the Gulf's turquoise calm and fall asleep to the Atlantic's gentle rhythm — your private strip of the Florida Keys awaits.
Marathon's only resort where both oceans meet at your doorstep.
From garden-view studios to oceanfront suites, every room is a quiet retreat where coastal charm meets thoughtful comfort.
A serene retreat overlooking lush tropical gardens. Ideal for solo travelers or couples seeking a peaceful Keys escape.
Wake to panoramic Gulf of Mexico views from your private balcony. Watch dolphins play in the morning light.
Our signature suite offers direct Atlantic Ocean access, a separate living area, and sunset views that stretch for miles.
Seashell Beach Resort is your gateway to the Florida Keys — with activities, dining, and waterfront moments all within walking distance.
Access to world-class reefs including the only living coral barrier reef in the continental U.S.
Marathon is known as the "Dorado Capital of the World" — book a charter right from our marina.
Spot wild Atlantic bottlenose dolphins in their natural habitat — just minutes from our dock.
Watch the sky ignite every evening from our beachfront — no reservation needed for the best seat in the Keys.
Our on-site restaurant celebrates the flavors of the Florida Keys — fresh catch from local waters, tropical produce from nearby farms, and signature key lime creations that have been a guest favorite for decades.
Whether it's a leisurely breakfast overlooking the Gulf, a romantic sunset dinner on the terrace, or casual poolside fare, every meal here is an occasion. Reservations recommended for dinner service.
Served daily from 7:00 AM – 11:00 AM · Tropical fruit, fresh pastries, and Florida citrus
Lunch 11:30 AM – 3:00 PM · Dinner 5:00 PM – 10:00 PM · Reservations recommended
Full buyout available for weddings, celebrations, and corporate gatherings up to 200 guests
"We've been coming to Seashell for over twenty years. The two-ocean setting is unlike anywhere else in the Keys, and the staff treats you like family every single time."
Situated on the Overseas Highway in Marathon — the geographic center of the Florida Keys — Seashell Beach Resort offers the perfect base for exploring the entire archipelago.
Key Largo is 45 minutes north, Key West is just 45 minutes south, and Miami International Airport is roughly 2 hours away. You're never far from adventure, and you're always close to home.
Whether you're planning a romantic getaway, a family adventure, or a fishing expedition, we'd love to help you book the perfect stay. Reach out and we'll get back to you within 24 hours.