AUGUSTA — Trek Across Maine Indoors — a 12-week training spinning class program to prepare those participating in the American Lung Association’s Trek Across Maine — will begin on April 2 at Kennebec Valley YMCA.

The group spin classes will take place from 6 to 7 p.m. Mondays and Wednesdays. Each class will feature a guest speaker talking about healthy lifestyle choices. Participants will receive a free T-shirt and a three-month membership at the YMCA’s campuses in Augusta or Manchester.

To register, visit www.kvymca.org.