IN THE U.S. Virgin Islands, St. John totals only 20 square miles of land, two-thirds of which is made up of U.S. National Park. Another 25 square miles of pristine bays form deep scallops in the island’s nearly undeveloped perimeter. Guarded on three sides by emerald-colored hills, these shimmering blue bays prove as jewel-like as the most exuberant travel guides say they are.

One of the inlets, Great Cruz Bay, holds the sparkling white beach and azure waters that make The Westin St. John Resort & Villas a favorite for couples seeking a picture-perfect backdrop for their vows. Forty-seven acres of manicured grounds, posh resort facilities and a staff of experienced wedding professionals supply everything else needed to make memories of a lifetime.

The bridal packages incorporate an endless variety of options for personalized catering, music, flowers, photography, wedding cake, champagne and special touches like tiki torches, twinkle lights, potted palms and chilled towels to help guests cool off after the ceremony. A golf cart dressed up like a Rolls-Royce will even deliver the bride to her groom in style. Ceremonies take place along the private beach, at a charming Caribbean-style beachside gazebo and in a host of lushly landscaped outdoor areas. Elegant venues for indoor events include the Great Cruz Bay Ballroom for truly grand affairs.

Wedding parties select from 175 guestrooms, all with Westin’s signature Heavenly Beds and Heavenly Baths. For guests who prefer additional space and privacy, the resort also offers 146 hillside vacation villas with fully equipped kitchens, separate conversation areas and panoramic views of Great Cruz Bay over the pink bougainvillea, swaying palms, gardens, lawns and brick walkways that add so much to the romantic atmosphere.

Room service delivers 24 hours a day, or couples can venture out to sample the bill of fare at four onsite venues, ranging from an oceanfront open-air café and casually elegant steak and seafood restaurant to a well-stocked deli and spacious pool- and beachside bar and grill.

Other diversions on-property include the resort’s palm shaded, white-sand beach; a quarter-acre swimming pool with a waterfall and whirlpool; a Westin Workout fitness club; spa services; a five-star PADI dive center and six lighted tennis courts—joined by endless watersports, yacht charters and (via ferry) upscale shopping or golf at Mahogany Run Golf Course on the neighboring isle of St. Thomas.