
Wild Dunes Resort – Sweetgrass Inn and Boardwalk Inn
Best for families and beach-focused stays who want multiple pools, direct Atlantic beach access, on-site tennis and golf options.
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Wild Dunes Resort – Sweetgrass Inn and Boardwalk Inn is a large Atlantic-beach resort on Isle of Palms with multiple pools, golf, tennis and a full-service spa; read this if you want a family-friendly beach resort with on-property activities. Harborside at Charleston Harbor Resort and Marina is a waterfront, marina-style resort in Mount Pleasant; read this if you prefer harborfront lodging with easy access to Patriots Point and Charleston-area attractions.
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Best for families and beach-focused stays who want multiple pools, direct Atlantic beach access, on-site tennis and golf options.

Best for travelers who want a Charleston-area harborfront hotel with marina access, meeting space, and easy access to Patriots Point.
When Wild Dunes wins: Choose Wild Dunes if you prioritize direct Atlantic beach access, a larger spread of on-property activities (golf, tennis, multiple pools), a full-service spa (The Spa at Sweetgrass), and more on-site dining choices—this is the stronger pick for families and guests who want a resort-within-a-resort experience.
When Harborside wins: Choose Harborside at Charleston Harbor Resort and Marina if you want a waterfront hotel on the Charleston Harbor with marina access, simpler navigation to Patriots Point and downtown Charleston attractions, and on-site meeting and event space sized for conferences and banquets.
Bottom line: Wild Dunes is the beach-and-activity resort (larger, more facilities, family-first); Harborside is the harborfront, meeting-friendly alternative closer to Patriots Point and Charleston-area sightseeing. Pick Wild Dunes for beach days and resort recreation, Harborside for a marina-front base near Charleston attractions.
| Category | Wild Dunes Resort – Sweetgrass Inn and Boardwalk Inn | Harborside at Charleston Harbor Resort and Marina |
|---|---|---|
| Overall vibe | Large Atlantic-beach resort with resort activities, family programming and on-site sports. | Waterfront, marina-style resort with harbor views and conference facilities. |
| Location | Isle of Palms — direct Atlantic beach access. | Mount Pleasant — on Charleston Harbor, near Patriots Point. |
| Size (rooms) | 246 rooms total across Sweetgrass Inn and Boardwalk Inn. | 125 guestrooms. |
| Audience / age policy | Family-friendly (children’s pool, kids’ program) with an adults-only pool option. | All ages welcome; not adults-only. |
| Pools | Multiple outdoor pools (4–5 reported), including a children’s pool and an adults-only Boardwalk Inn pool. | Two outdoor pools and a poolside bar. |
| Beach / waterfront | Direct Atlantic beach access (Isle of Palms). | Harborfront marina setting on Charleston Harbor (not the Atlantic ocean beach). |
| Spa & wellness | The Spa at Sweetgrass — 10,000 sq ft, 14 treatment rooms, private outdoor spa garden. | Spa services on site (supplier listing); specific spa size and signature treatments not published. |
| Dining & bars | Eight restaurants and nine bars across the property (Coastal Provisions, Oystercatcher, Laughing Gull among them). | Two restaurants (including Reel Bar) and one bar/lounge; buffet breakfast available for a fee. |
| Meetings & events | Extensive event inventory (multiple ballrooms, Grand Pavilion, ~35,000 sq ft of meeting space across the property). | 10,000 sq ft of conference/meeting space with banquet facilities and meeting rooms. |
| On-site marina / boating | Water excursions and charters bookable via Isle of Palms Marina; marina services near the resort. | Marina on site with motor boating, sailing and fishing on site. |
Wild Dunes sits on Isle of Palms with direct access to an Atlantic beach and island bike paths.
Choose Wild Dunes for a classic ocean-beach, island resort setting and easy beach time.
Harborside occupies a waterfront site on Charleston Harbor in Mount Pleasant, adjacent to Patriots Point.
Choose Harborside if you want harborfront access near Patriots Point and convenient proximity to Charleston-area sights.
Sweetgrass Inn and Boardwalk Inn together make a 246-room resort product with a range of room and suite types.
Wild Dunes gives more room variety and on-resort-service levels suited for longer resort stays or larger groups.
Harborside has 125 guestrooms with harbor-view and inland-view room types, plus suites.
Harborside is a mid-size hotel with a focused set of room types, including harbor-view rooms and some upgraded suites.
Wild Dunes has many on-site restaurants and bars with options from casual poolside to signature coastal dining.
Wild Dunes is the better pick for diners who want variety without leaving the property.
Harborside offers a smaller set of dining options focused on harborfront service.
Harborside works well if you want a few on-property options and plan to explore Charleston’s restaurants.
Wild Dunes emphasizes beach access plus multiple pools and family-oriented water features.
Wild Dunes is the stronger pick for pool variety and direct ocean swimming.
Harborside has two outdoor pools and poolside amenities on the harborfront.
Harborside is best if you want harbor swimming/pool time and easy marina access rather than ocean beach access.
Wild Dunes pairs a large spa and fitness offerings with ample event and wedding space.
Wild Dunes is a better fit for spa-goers, sports enthusiasts and large events or weddings.
Harborside offers fitness facilities, concierge and dedicated meeting space suitable for conferences.
Harborside is oriented to meetings and groups that want a harborfront setting with marina access.

Direct Atlantic beach access and multiple oceanfront pools make Wild Dunes the top choice for beach-focused stays.

Harborside sits on Charleston Harbor with an on-site marina, harbor views and easy access to Patriots Point.

Wild Dunes offers kids’ programs, a children's pool, bike rentals, tennis and golf—more family-focused activities on property.

Harborside’s 10,000 sq ft of conference space and meeting-room setup suit medium-size meetings and banquets.
Wild Dunes — it has direct Atlantic beach access and multiple oceanfront pools; Harborside sits on the harbor and does not offer Atlantic ocean beach access.
Harborside is closer to Patriots Point and is positioned on Charleston Harbor; both properties can arrange excursions into Charleston, but Harborside has shorter transfers to Patriots Point.
Wild Dunes — it lists eight restaurants and nine bars, compared with Harborside’s two restaurants and one bar/lounge.
No — both properties welcome guests of all ages. Wild Dunes does maintain an adults-only pool option for quieter hours.
Explore how Wild Dunes Resort – Sweetgrass Inn and Boardwalk Inn stacks up against other hotels nearby:
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