Fishing -- The U.S. Virgins have excellent deep-sea fishing -- some 19 world records (eight for blue marlin) have been set in these waters. Outfitters abound at the major marinas like Red Hook. Peanut Gallery Fishing Charters, 8168 Crown Bay Marina, Suite 310 (tel. 340/642-7423; www.fishingstthomas.com), offers both light-tackle inshore sportsfishing and deep-sea sportsfishing. Your captain will be Captain Steve Malpere, who has been fishing in Caribbean waters for more than 30 years, or Captain David Pearsall. The vessels provide inshore fishing year-round for the likes of barracuda, bonefish, kingfish, mackerel, and tarpon. The cost for 4 hours is $500; 6 hours, $600 to $650; and 8 hours, $800 to $880.
You can also line-fish from the rocky shore along Mandahl Beach on the north coast. The tourist office in Charlotte Amalie should have a listing of legal spots for line fishing around the island.
Golf -- Mahogany Run, on the north shore at Mahogany Run Road (tel. 800/253-7103; www.mahoganyrungolf.com), is an 18-hole, par-70 course. This beautiful course rises and drops like a roller coaster on its journey to the sea; cliffs and crashing sea waves are the ultimate hazards at the 13th and 14th holes. Greens fees are $125 to $165 for 18 holes. Carts are included. Club rental costs $45.
Kayak Tours -- Virgin Islands Ecotours/Mangrove Adventures (tel. 340/779-2155; www.viecotours.com) offers half-day kayak trips through the mangrove lagoon on the southern coastline. The cost is $69 per person. The tour is led by professional naturalists who allow for 30 to 40 minutes of snorkeling.
Sailing -- Yacht Haven Grande St. Thomas, 9100 Port of Sale, Charlotte Amalie (tel. 340/774-9500), is the premier marine facilities for mega-yachts in the Caribbean. Located alongside Charlotte Amalie harbor, it encompasses a 48-slip facility, with dining, entertainment, and recreational options. American Yacht Harbor, Red Hook (tel. 340/775-6454; www.igy-americanyachtharbor.com), can refer both bareboat and fully crewed charters. It leaves from the east end of St. Thomas in Vessup Bay. The harbor is home to numerous boat companies, including day-trippers, fishing boats, and sailing charters. There are also five restaurants on the property, serving everything from Continental to Caribbean cuisine. Another reliable outfitter is Charteryacht League, at Gregory East (tel. 800/524-2061 in the U.S., or 340/774-3944; www.vicl.org).
Sailors may want to check out the Yachtsman's Guide to the Virgin Islands, available at major marine outlets, at bookstores, through catalog merchandisers, or directly from Tropical Publishers, P.O. Box 12, Adelphia, NJ 07710 (tel. 877/923-9653; www.yachtsmansguide.com).
Tennis -- The best tennis on the island is at the Wyndham Sugar Bay Beach Club, 6500 Estate Smith Bay (tel. 340/777-7100), which has three Laykold courts lit at night and a pro shop. Nonguests pay $8 per hour.
Another good resort for tennis is the Bolongo Bay Beach Resort, Bolongo Bay (tel. 340/775-1800), which has two courts that are lit until 8pm. They're free to members and hotel guests, but cost $10 per hour for nonguests.
Marriott Frenchman's Reef Tennis Courts, Flamboyant Point (tel. 340/776-8500), has two courts. Again, nonguests are charged $15 per hour per court. Lights stay on until 10pm.