Beacon Harbor is a full-service marina facility on Bethel Island offering 50 parking spaces for cars with trailers, 50 boarding floats, and 2 carry-down walkways for convenient water access.

The facility accommodates boats between 15-30 feet in length and provides 300 dry storage spaces, making it a comprehensive launching point for recreational boaters on Piper Slough in the Sacramento-San Joaquin Delta.