5 fun and adventurous ways to blast calories and burn fat.

By Jessie Knadler, Prevention

Kayaking

Calories Burned
340 per hour

Body Benefits
A sculpted upper body. "Pulling the paddle against the water is great resistance," says 29-year-old Michelle Christensen of Baltimore, who spends summer weekends kayaking around the Chesapeake Bay. "You target your shoulders, triceps, biceps, back, and core."

Hiking

Calories Burned
Up to 400 per hour

Body Benefits
Improved cardiovascular fitness. "There's a lot of lung cancer in my family," says 49-year-old hiker Lynn Anderson, from Helena, MT. "It's always been a priority to keep my lungs in tip-top shape." Plus, hiking will give you stronger, leaner thighs and firm your rear to boot.

Weekend 3: Speedminton

Calories Burned
About 400 per hour

Body Benefits
Tank-worthy arms. This hot new game is a cross between racquetball, badminton, and tennis but with no nets or walls involved. Players bat a speeder—which looks like the birdie used in badminton—back and forth using lightweight racquets.

Cycling

Calories Burned
500 to 700 per hour, depending on speed and terrain

Body Benefits
Improved cardiovascular fitness plus solid legs and buns. "It helped me lose 20 pounds!" says Jan Reeves, 49, a recreational cyclist and mother of four in Lexington, Ky. "And I eat whatever I want."

Inline Skating

Calories Burned
816 per hour

Body Benefits
Sculpts your buns and thighs without pounding your knees. Skating is much less jarring than other high-intensity sports like jogging. "I was a runner for years but switched to skating when running started to hurt," says Joanne Geveshausen, 48, of Winchester, Ky.

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