Florida's largest urban park, Oleta River is located on Biscayne Bay in the busy Miami metropolitan area.  Although it offers a variety of recreational opportunities, the park is best known for miles of off-road bicycling trails, ranging from novice trails to challenging trails for experienced bicyclists.  Along the Oleta River, at the north end of the park, a large stand of beautiful mangrove forest preserves native South Florida plants and wildlife. Canoeists and kayakers can paddle the river to explore this amazing natural area. Swimming from a 1,200-foot sandy beach and saltwater fishing are also popular activities. Picnic tables and grills are available. Nine pavilions can be rented for a fee. All have water, and the largest one has electricity. Visitors can rent kayaks, canoes, and bicycles. The park has a loaner system for bicycle helmets.  Located at 3400 NE 163rd Street, off I-95 in North Miami Beach.