The Park Gym is a boxing and Tae Kwon Do gym right next to a huge MUNI repair station. MUNI and boxing / Tae Kwon Do go together perfectly: self defense is definitely needed on certain MUNI lines (9 San Bruno for sure), patience and self-discipline will help the otherwise-intolerable waits for the bus, and ass-kicking skills might be necessary every now and again to remind MUNI to get their act together.
The Park Gym is what other gyms are not: clean, airy, light, spacious, un-smelly and friendly. The boxing and Tae Kwon Do classes are divided by levels, and everyone is made to feel welcome regardless of experience or age (kids classes are available and look like a blast). Some folks are pretty hard core, interested in learning the finer parts of the sweet science. Others are looking for an excellent and affordable cardio workout in a local, no-attitude spot.
Whatever your goal is, super nice owner / trainer David Park is happy to help you out. Rates are very reasonable for memberships and drop-ins, and David is an excellent teacher. Whether you just wanna burn some calories or prepare for your next MUNI adventure, The Park Gym is worth checking out.