Kick up your heels for today's side deal: for $20, you get a 10-class punch card for tae kwon do or kickboxing classes at Authentic Tae Kwon Do, located in Markham (a $150 value).

Authentic Tae Kwon Do offers a safe and encouraging environment for budding martial artists of all ages and sexes to learn from an expert staff of martial arts masters. Your Groupon is good for 10 tae kwon do or kickboxing classes, where, in a co-ed group setting, you'll learn basic martial arts principles and practices, including courtesy, integrity, self-control, and spirit, along with the mighty moves. Taking up martial arts can offer a spirited cardio workout while increasing your confidence and agility. You can find the class schedule here; call ahead to reserve your spot.

This deal is valid for new clients only.