With temperatures rising and workout clothes de-layering, there’s no better time to get your heart pumping with slush-pile-free activities in the great outdoors. Spring is one of the best times of the year to swing a bat, throw a ball, climb a mountain, or go for a run—even paunchy black bears famously come out of hibernation to frolic in the fields.

But while the entire country is basically your gym, some cities take fitness to a whole other level, garnering attention for an active lifestyle under the sun. These 10 fitness-friendly US destinations have been counting down to the vernal equinox as far back as December, and they’re our picks for the best outdoor places to burn both calories and fat this spring.