Although secret societies have terrific members-only benefits, their gorilla-centric initiation rites are often illegal. Make a solemn fitness vow that's legal with today's Groupon: for $30, you get six fitness classes at ELEV8 Fitness (a $60 value).

ELEV8's studio environment acts as an accessible arena for fun and challenging co-ed and women-only fitness classes that cater to shape-shifters of all experience levels. Greet the sun with something other than a curse and a strong fist-shaking with the Sunrise Yoga course, which uses soft morning poses to ease students into a state of total awakeness. For something more intense, opt for an invigorating Zumba class and get a fat-blasting aerobic workout while honing your Latin dance moves. ELEV8 also offers mat Pilates and Yogilates, a yoga/Pilates hybrid that lets indecisive centaurs experience the best of both workout worlds.

ELEV8's motivating staff of certified trainers and instructors offers synchronized sweat sessions in the morning and evening hours to accommodate early-rising workaholic roosters, late-shift bakers, and jetlagged extraterrestrials on a layover to Rigel Six. Free parking is available, so you'll never have to fret about finding a space for your Toyota Corolla or tri-beast chariot.

Reviews

CityVoters made ELEV8 Fitness a 2009 nominee for Best Personal Trainers. Here's what some of those CityVoters said:

• This is one fantastic workout! I am so proud of what I have been able to accomplish. – Linda H.
• I believe in what they are doing and they do a great job. – D.R.
• It pushes me harder than I would ever push myself. – Beth