You can angle for yellowtail snapper, grouper, marlin, tuna, and wahoo on deep-sea excursions. Costs range from $150 per person for a half day to $250 for a full day. Prices usually include bait and tackle, instruction for novices, and refreshments. Ask about licensing and insurance. Big Sailfish Too (Anse Marcel. 690/27-40-90) is your best bet on the French side of the island. Lee's Deepsea Fishing (Welfare Rd. 82, Simpson Bay. 599/544-4233 or 599/544-4234. www.leesfish.com) organizes excursions, and when you return, Lee's Roadside Grill will cook your tuna, wahoo, or whatever else you catch and keep. Rudy's Deep Sea Fishing (14 Airport Rd., Simpson Bay. 599/545-2177 or 599/522-7120. www.rudysdeepseafishing.com) has been around for years and is one of the more experienced sport-angling outfits.