
Three Waters Resort and Marina
Best for families, groups, and guests who want a full resort campus with multiple pools, restaurants, beaches, activities and a large marina.
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Three Waters Resort and Marina is a large, family- and group-friendly waterfront resort in Islamorada with multiple pools, beaches, restaurants and a full-service marina. Waterside Suites & Marina is a smaller, marina-side suite hotel in Key Largo that will appeal to travelers who want simple suite lodging with direct boat access.
Updated · about 32 km (20 miles) apart

Best for families, groups, and guests who want a full resort campus with multiple pools, restaurants, beaches, activities and a large marina.

Best for travelers who want compact suite-style rooms with kitchens and direct marina access in Key Largo.
When Three Waters Resort and Marina wins: choose Three Waters if you want a resort experience — several pools (including an adults-only enclave), many on-site dining options, beach access, a large marina with 72 slips, organized activities, and more event space.
When Waterside Suites & Marina wins: choose Waterside if you prefer a small, suite-focused property in Key Largo with kitchen-equipped rooms, a single outdoor pool, and easy access to John Pennekamp Coral Reef State Park and local boat activities.
Bottom line: Three Waters is the better pick for a full-service, activity-rich Keys resort and marina; Waterside Suites & Marina is a practical, lower-key choice for travelers focused on marina access and suite comforts in Key Largo.
| Category | Three Waters Resort and Marina | Waterside Suites & Marina |
|---|---|---|
| Overall vibe | Large resort campus with multiple beaches, pools, bars and restaurants | Small marina-side suite hotel with a relaxed, practical feel |
| Location | Islamorada (mile marker 84) — 15 waterfront acres where Atlantic, Bay and Gulf meet | Key Largo, 201 Ocean Drive — waterfront, steps from marina and boat activities |
| Size (rooms) | 214 rooms, suites and cottages | 40 guestrooms |
| Suitable for ages | All ages (The Cove is a 21+ enclave) | All ages (property is not adults-only) |
| Pools | Three outdoor pools (including an adults-only Cove pool); swim-up bar at Kokomo | 1 outdoor pool |
| Restaurants & bars | Multiple on-site options (Kindler Wood-Fired Fare, Little Limón rooftop, Mercado Morada, Tiki Bar, Kokomo swim-up bar, Islamorada Pizza Co., Lucky Twist, Starbucks and more) | Not published |
| Spa & wellness | Oceanside massages / Ooh La La spa treatments and open-air fitness options | Not published |
| Marina & boating | Full-service marina with 72 slips (including transient slips) and deep channel | Marina on site; boat tours and on-site personal motorized watercraft available |
| Room style | Rooms, suites and cottages across 25+ room types (ocean- and marina-view options) | Suites and studio-style units with kitchens and private balconies (examples: 'Deluxe Suite, 1 King Bed, Non Smoking, Balcony'; 'Deluxe Studio Suite') |
| On-site activities | Kayaking, paddleboarding, snorkeling, fishing charters, Rum Runner water taxi to sister properties, seaplane excursions | Scuba diving on site, snorkeling, kayaking nearby, boat tours, bicycle rentals |
Three Waters sits at mile marker 84 in Islamorada on 15 waterfront acres, near local attractions and within a short drive of other Upper Keys sights.
Choose Three Waters if you want a larger resort campus and easy access to multiple Islamorada attractions.
Waterside Suites & Marina is a marina-side property in Key Largo at 201 Ocean Drive, within walking distance of John Pennekamp Coral Reef State Park.
Choose Waterside Suites if proximity to Key Largo attractions and immediate marina access are priorities.
Three Waters offers a wide selection of room types, including suites and cottages across 214 accommodations.
Three Waters is better for travelers who want options — family suites, oceanfront rooms, and adults-only Cove options.
Waterside Suites & Marina has about 40 guestrooms, primarily suite-style units with kitchens and private balconies.
Waterside suits travelers who value in-room kitchen facilities and a simple suite layout over a wide variety of room categories.
Three Waters provides many on-site dining venues across casual and elevated concepts.
Three Waters is the clear pick if you want multiple restaurant styles and bars in one place.
Waterside Suites highlights convenience and self-catering with kitchen-equipped rooms; on-site dining options are not published in the supplier listing.
Pick Waterside if you plan to cook in-room or eat at local Key Largo restaurants rather than rely on a big on-site restaurant roster.
Three Waters centers much of its guest experience on beaches, pools and a full-service marina.
If you want beaches plus pools plus a larger marina, Three Waters combines all three on a single property.
Waterside Suites is marina-focused with direct access to boating activities and a single outdoor pool.
Waterside is a straightforward option for travelers who prioritize marina access and water activities rather than multiple pools or beach programming.
Three Waters offers spa treatments, fitness spaces and evening entertainment options across its restaurants and the Tiki Bar.
Three Waters gives more on-site wellness and evening options without leaving the resort.
Waterside provides basic guest services plus access to Key Largo nightlife and marine activities nearby.
Choose Waterside when you plan to use Key Largo as your base for local watersports and off-property nightlife.

Three Waters — multiple pools, kids’ activities, family suites and plenty of dining choices.

Waterside Suites & Marina — direct marina-side location and kitchen-equipped suites.

Three Waters — signature and casual restaurants plus bars and a rooftop venue.

Waterside Suites & Marina — small property, kitchenette rooms, and fewer crowds.
Three Waters — its range of room types, multiple pools and family-friendly activities make it easier to keep different ages entertained.
Waterside Suites & Marina is steps from John Pennekamp Coral Reef State Park and lists on-site scuba/snorkeling options; Three Waters can arrange water activities but is located in Islamorada (a drive from Key Largo).
Waterside Suites & Marina rooms include kitchens with full-sized refrigerators/freezers and stovetops; Three Waters has room types and suites but does not list full in-room kitchens as a standard across the property.
Three Waters publishes oceanside massage and Ooh La La spa treatments. Waterside Suites & Marina's supplier listing does not publish a spa.
Explore how Three Waters Resort and Marina stacks up against other hotels nearby:
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