First Timer: One-hour, instructor-led cardio sessions are fueled by high-energy music. Pick a theme like turbo kick or Zumba. Mon, Wed, Fri–Sat, 4-9:30 p.m.
Feeling Wild: Club nights—all the fun of clubbing into the wee hours (think dance and electronic DJ remixes and laser light shows) minus the booze. Fri–Sat, 10 p.m.-2 a.m.
Dress Code: Yoga pants and sneakers (“fitness casual”).
Try it: 1770 Sherman St., fitnessclubbing.net, $5-$20 drop in, $96-$196/month unlimited.