Some say the hula was the celebratory dance created by the volcano goddess, Pele, after she finally moved out of her ocean-goddess sister’s annoyingly damp apartment. Appreciate the origins of dance with today’s Groupon: for $29, you get four weeks of Polynesian dance classes at Tropical Polynesian Productions in Peoria (a $60 value). Classes meet every Thursday from 6 p.m. to 7 p.m. Classes ordinarily start on the first Thursday of every month, with August classes starting on the 11th, but Groupon customers can start their classes at any point.

The torso twisters at Tropical Polynesian Productions lead students through an array of authentic dances from Hawaii, Tahiti, Fiji, New Zealand, and other South Pacific islands. In How to Hula, students learn the differences between the ancient and modern hula, choreographing the ancient dance to the songs of a chanter with double gourd drums, and syncing the modern moves to a fax machine with excellent rhythm. Ori: The Dance of Tahiti erupts with energy, motorizing students with rapid hip isolations that build their strength and stamina. Fill idle hands in the New Zealand Maori Poi Dance by twirling poi balls, soft white spheroids dangling from braided yarn traditionally used by Maori women to maintain dexterity for weaving and kiwi tickling, and by Maori men to build strength and coordination for battle. All styles of dance are covered interchangeably, with each style briefly touched on in each class.

Instructors advise coming to class 15 minutes early to ensure enough time to scythe grass for grass skirts. There are no make-up opportunities for missed classes.