The second annual Cycle-a-Thon to benefit Maureen's Haven homless outreach program at the First Presbyterian Church in Southampton will "cycle on" again this year. Sign up for a half-hour or full hour ride on one of the 12 bikes or 12 hours. All those who participate also get to use the gym free for the day. Riders must make a minimum donation of $15 and they can also get personal sponsors to raise more money. Core Dynamics will match a penny for every calorie burned in the day.