Equinox is a comprehensive fitness club for people that take their workout seriously and want all the amenities. A nation wide chain, Equinox has around 20 locations in Manhattan alone. Each Equinox offers personal training, group fitness classes including yoga, a beautiful spa and one of the nicest gyms in the city. Additionally, Equinox has long been committed to being environmentally sensitive in its club design, construction and energy efficiency. They adding to their sustainability in many ways outlined in their sustainability policy which you can read about here.