Free fitness classes

The Hudson River Park Trust is bringing back its popular summer fitness program with an expanded range of free activities in Lower Manhattan’s outdoor gymnasium. As part of the program, Tribeca’s Pier 25 at North Moore St. will be getting a free, weekly yoga meetup thanks to women’s sportswear brand Lolë.

The Pier 25 yoga series kicks off June 4, from 6:30-7:30 p.m., with Rachel Piskin of Chaise23. Piskin’s workout combines ballet, pilates, aerobics, and strength training to tone and strengthen the core.

Thereafter, Pier 25’s Summer of Fitness events will take place every Tuesday at 6:30 p.m. until August 20 (no class July 23). Space is limited to 75 people and participants are asked to bring their own mat. R.S.V.P. at www.hudsonriverpark.org.

Also at Hudson River Park, Shape Up NYC will be offering free fitness classes Wednesday and Thursday evenings, sponsored by NYC Parks, Equinox gyms, NYC Service and Empire Blue Cross Blue Shield. On Wednesdays at Pier 64 in Chelsea, there will be free classes in Nia, a body-awareness and movement discipline inspired by martial arts, dance, yoga and the Alexander Technique. Pier 46 in the Village will host weekly pilates classes on Thursdays.

Both classes are first come, first served, from 6:30-7:30 p.m., through August 22. Attendees are asked to bring their own mats.

For more info, visit www.hudsonriverpark.org or call the park’s info line at 212-627-2121.