Muelle Flotante La Boca is a floating tourist dock on the Río Rapel at the sector known as La Boca de Rapel, in the comuna of Navidad, O'Higgins Region.

The facility was built by Chile's Dirección de Obras Portuarias (MOP) in response to severe damage caused by extreme weather events in 2023 and 2024, which eroded the riverbank and compromised existing infrastructure.

The project includes riprap bank protection, the floating dock itself for tourist and small watercraft, a launch ramp for vessels related to water sports, shaded rest areas, solar lighting, and universal-accessibility improvements.

Situated where the Río Rapel meets the Pacific Ocean, the dock serves both local fishing boats and recreational users, and is intended to support tourism and nautical sports along this stretch of the O'Higgins coast.