Ride 10, 28, or 50 miles on paved roads by lakes and rivers, through miles of blooming Lupines, or take a shorter out-and-back ride on Mercer’s new paved bike trail, and enjoy the Mercer Bird Festival featuring demonstrations, educational booths and guided bird hikes. Registration includes a T-shirt, goodie bag, snacks, and lunch ticket. Contact: Mercer Area Chamber of Commerce, 715-476-2389 or www.mercerbybike.com