Coyote Hills Regional Park is a very popular East Bay Regional Park located in Fremont. It has beautiful views of the Bay, the marshlands, and hills. There are a lot of trails to hike on and bike thru. Yellow in the summer and fall and green in the winter and spring like other east bay hills in the area. There is a nice visitor center with flush toilets, exhibits, and a butterfly garden. Popular trails to try are Bayview Trail, Red Hill Trail, Apay Way.