A phenomenal example of adaptive reuse, this sports-and-entertainment complex along the Hudson River between 17th and 23rd streets (entrance on 23rd) is the size of four 80-story buildings lying flat. There's pretty much every kind of sports activity going on inside and out from golf to ice-skating, roller skating, rock climbing, swimming, kayaking, bowling, gymnastics, and basketball. Plus there's a spa, film studios, and a brewery, and it's the jumping-off point for some of the city's varied water tours and dinner cruises. Trips on the river via private yacht can be arranged by Surfside 3 Marinemax Marina (212/336-7873). Lunch cruises, dinner cruises, and cabaret sails can be reserved on Bateaux New York or Spirit of New York, which both leave from Pier 61 (866/211-3805).
Visit the Travel Talk forums for help on planning your trip