Sunday, July 17, 2016 10 a.m. to 6 p.m. Location: Mailly Waterfront Park, 21 River Rd., Bowdoinham, ME For more information: 207-442-8400; merrymeetingtrail.org/events.html Merrymeeting Trail and the Kennebec Estuary Land Trust are hosting three, free, led bike rides on July 17th for the 4th Annual Explore Merrymeeting Bay Bike Ride.