The Nine Mile Creek Regional Trail is complete and ready for eager walkers and bikers. The new 15-mile trail travels through Edina, Hopkins, Minnetonka and Richfield and features views of wetlands and natural areas. Celebrate with a ribbon-cutting ceremony followed by yard games, food, climbing wall and other activities. Guests who don’t have a bike to ride can borrow one from the Three Rivers Park District’s bike fleet. 10 a.m. Sun. Free. Fred Richards Park, 7640 Parklawn Av., Edina. 763-559-6700. threeriversparkdistrict.org.