1. Inline skating Aren’t you tired of wobbling along, clutching a nearby jogger? New York Skate’s hourlong Central Park lesson ($25), for beginners and advanced ’bladers alike, hones balancing and braking skills. (www.nyskate.com; 212-486-1919.)
2. Tennis Practice your backhand or volley in a Stroke of the Week mini-course at the Midtown Tennis Club for $15. Novices get the nuts and bolts from four one-hour lessons for $120. (341 Eighth Avenue, near 27th Street; 212-989-8572.)
3. Golf Polish your swing at the Randalls Island Sports Foundation’s upgraded, two-tiered driving range. A bucket of balls is $10; professional lessons available, too. (North of Downing Stadium; 212-427-5689; to schedule lessons, call 917-655-1363.)
4. Wall Climbing The Central Park course goes over the basics for first-time and advanced climbers ($200, and no permit required). For you Triple-Xers with abs of steel, a climb on the wall at the Rock Health and Fitness Club in Queens is your best bet ($20). (North Meadow Recreation Center: mid-park at 97th Street; 212-348-4867; the Rock in Queens: 22-15 31st Street, Astoria; 718-204-1400.)
5. Kayaking New York Kayak Company offers hourlong lessons at any skill level (starting at $80; includes gear) on the Hudson River—which is so clean these days you probably won’t run across anything nasty. (South side of Pier 40, between Houston and West Streets; 800-KAYAK99.)