One of more than 50 Marriott Vacation Club resorts, Marriott's OceanWatch Villas at Grande Dunes in Myrtle Beach is tucked away along the beach, behind a. Explore the benefits of timeshare ownership and exchange programs at Marriott's OceanWatch Villas at Grande Dunes, an oceanfront resort in Myrtle Beach. View listings at Marriott's OceanWatch Villas at Grande Dunes - located in Myrtle Beach, South Carolina, to find the perfect timeshare resort spot. Yes, this hotel has a pool. Enjoy several Marriott Bonvoy Member benefits when you stay at our ownership resort. Cancel Continue to application. BuckyandChris wrote a review Oct High score for Myrtle Beach.