Oleta River State Park is Florida's largest urban park, located right on the Oleta River on Biscayne Bay in Sunny Isles Beach. The sandy beach at Oleta faces Biscayne Bay, which is also where you go swimming. Palm trees, seagrape trees and other native vegetation provide shade. Oleta offers miles and miles of off-road bicycle trails, from novice to challenging. The park has a loaner system for bicycle helmets. Oleta River State Park is also a popular destination for canoeing and kayaking. There's a rental concession with all the gear you need to paddle along Miami's calm bay waters.