The Marino Ballena National Park is comprised of golden sandy beaches (playa uvita, playa arco, playa ballena, and playa pinuelas), rocky shorelines, cliffs, islands, mangrove ecosystems, rock and coral reefs. The parks’ northern boundary starts from river Morete (Rio Morete) and extends south to Pinuela point (Punta Pinuela), covering approximately 9 miles (15km). The most prominent land formation found within the park is the Punta Uvita Whale Tail (Punta Uvita Tombolo), a sand bar that extends 1 kilometer into the pacific ocean. During low tide visitors can enjoy a walk out to the Punta Uvita Tombolo where rock reef stretches out forming the shape of a whale tail. The park also contains a large stretch of coral reef, the most common species being the Stony Coral – (Porites lobata), and forms a crescent necklace with the small rock island of La Viuda (the Widow), one large island called Isla Ballena (Whale Island) and three small rocky islands known as Las Tres Hermanas (Three Sisters). South of the Marino Ballena Park borders, but forming part of the stretch of different land formations, are the famous sea caves of Ventana Beach.