Hidden Harbor Marina is an all sailboat facility in the Sacramento River Delta located at the confluence of Cache and Steamboat Sloughs, located two miles north of Rio Vista.

• Hidden Harbor Marina's philosophy of a "sailboats only" harbor stems from the fact that "sailboaters" in general are a more laid-back type boater. They aren't interested in getting anywhere in a hurry, or lots of noise, or they wouldn't have a sailboat. We also don't have covered slips, as we believe that covered slips would ruin the aesthetics of Hidden Harbor's natural Delta setting.
  
  
• Harbor Depths: The "east harbor" has a 7 foot depth throughout at a 0.0 low tide. The "west harbor" varies from 7 feet to 5 feet at a 0.0 low tide.
  
  
• Rio Vista: Rio Vista is located just 2 miles from Hidden Harbor, via the Real McCoy Ferry, which is operated by Cal Trans and operates 24 hours a day. Rio Vista has a full service boatyard, Waltons Marine, which is located behind the Delta Marina. Lira's supermarket and Ace Hardware have an excellent variety of supplies, and several restaurants in town offer a fine choice of dining.