St. Thomas is a gem of the Caribbean, one of three main U.S. Virgin Islands (the other two are St. John and St. Croix). It is perfect for those who love the water. There's no end to the activities that happen on, in, or near the water, including windsurfing, parasailing, kayaking, and diving. If you're ready to propose, St. Thomas is the perfect tropical destination. Here are some of our favorite spots:

Located on St. Thomas' north coast, Magens Bay is known as one of the world's most beautiful beaches. You can snorkel and see the rays and turtles, have a frozen drink at the bar and a meal at the restaurant, or just lounge on the sand. The beach stretches out for a mile, so you can take your lady on a walk on the white sand and dip your toes in the crystal blue water. As the sun sets, drop to one knee and present her with a sparkling diamond cluster ring.

Another breathtaking beach on St. Thomas is Secret Harbour. The calm waters are perfect for swimming, snorkeling, and diving. After an active afternoon, sit on the patio of the Cruzan Beach Club at the Sunset Grille. It's right on the beach and serves pizzas and tropical appetizers like ahi nachos. Order a cocktail and surprise her by popping the question as you toast.

When you’re ready to propose, the family-run Bolongo Bay Resort on the south shore of St. Thomas will be ready to receive you and your bride-to-be. Choose from beachfront rooms, from which you can walk out your door onto the sand, or upper floor rooms that have balconies with ocean views. There are also oceanfront condos just down the beach with living areas. Bolongo Bay also offers romantic packages complete with chocolates, champagne, and meals included. The resort arranges diving excursions, so you can leave the planning to the pros and completely relax.

Crystal Cove Resort on Sapphire Bay is a privately owned resort located on the east coast of St. Thomas, close to nearby town Red Hook, which has all the shops and restaurants you could want, and the ferry to St. John. You’ll feel right at home in the large, comfortable condos, with a white sand beach just steps outside your door. Pack a picnic and have a romantic dinner on the beach. Then, as you’re unpacking dessert and champagne, present her with a box containing a gorgeous diamond cluster ring.

In St. Thomas, you have a great many options for renting a boat and relaxing out on the water. Companies rent power boats for half-day or full-day excursions, which are great for swimming and snorkeling excursions. You can also rent a luxury yacht or sailboat — it all depends on the kind of experience you’re looking for.

If your lady is an animal lover, take her to Coral World Ocean Park, where she can experience the magic of the Caribbean’s marine life. The aquarium houses hundreds of species of aquatic creatures, and in the touch pool you can gently handle animals like starfish and sea cucumbers. Exhibits include the Shark Shallows, the Stingray Lagoon, and the Turtle Pool. The awe in her eyes as she observes these beautiful creatures will turn to surprise when you present a diamond cluster ring and ask for her hand.