Fitness Free-for-All

Practice your postures along the Charles on Wednesdays at 6 p.m. The class is just one of many free fitness offerings on the Esplanade starting in July. (photograph by j. kiely jr.)

SALSA
Blackstone Park

Whether you already have a partner or are looking to find one, this three-hour salsa lesson is ideal for all experience levels and ages.

Mondays, 5 to 8 p.m.

BOOT CAMP
Christopher Columbus Park

Bid adieu to the workweek with rounds of jumping jacks, pushups, and lunges in the morning sun.

Fridays, 6:30 to 7:30 a.m.

ZUMBA
The Esplanade at the Hatch Shell

Thumping beats and a concertlike setting have turned this easy-to-follow workshop into one of the largest outdoor Zumba classes in Boston.

Tuesdays starting in July, 6 to 7 p.m.

LINE DANCING
Franklin Park

Just in time for summer wedding season, learn choreographed steps and upbeat moves with a group of your closest friends (or strangers).

Wednesdays, 6:30 to 7:30 p.m.

HIIT
Madison Park

The best early-morning eye opener? A vigorous round of al fresco HIIT, which combines bursts of intense exercise (high knees, running, and more) with brief periods of rest.

Mondays, 7:30 to 8:30 a.m.

PILATES
Rose Kennedy Greenway

Ali Baldassare’s signature Pilates boot camp mixes cardio drills with core-strengthening exercises designed to tone the whole body. BYO mat.

Every other Monday, 6:30 to 7:15 p.m.

TAI CHI
Symphony Park

This class in the Fenway teaches the mind-body moves of tai chi, created for self ­defense but now used as a stress ­reducer. It’s even being studied as a med-free way to fight chronic pain.

Tuesdays, 10 to 11 a.m.

YOGA
Jamaica Pond (Pinebank Promontory)

At this all-levels class, you can perfect your tree pose while watching the sun set over a glistening Jamaica Pond. BYO mat.

Tuesdays, 6 to 7 p.m.

For the full line-ups, visit normanbleventhalpark.org and bphc.org