Sky Safari Tours. On these popular tours, would-be Tarzans and Janes whisk through the "Valley of the Giants" (so dubbed for the towering trees) at speeds up to 50 mph (80 kph) along five cable lines; the longest (nicknamed "The Boss") stretches 1,350 feet through towering turpentine and mahogany trees draped thickly with bromeliads, suspended 250 feet above the ground. Following the Canadian-based company's mantra of "faster, higher, safer," it uses a specially designed trolley with secure harnesses attached. Many of the routes afford unobstructed views of Brimstone Hill and the sea beyond. The outfit emphasizes environmental and historic aspects. Guides provide nature interpretation and commentary, and the office incorporates Wingfield Estate's old sugar plantation, distillery, and church ruins, which visitors can explore. Admission is usually $65–$85, depending on the tour chosen. It's open daily 9–6, with the first and last tours departing at 10 and 3. Wingfield Estate, Wingfield Estate, St. Kitts. 869/466–4259; 869/465–4347;