Untethered Sailing

Private catamaran charters on San Francisco Bay

Celebrate a birthday, enjoy a family outing, bring your team together or plan a proposal aboard our Excess 11 catamaran.

Marquis Charters handles availability and quotes for Untethered. Your inquiry does not confirm a booking.

Excess 11 catamaran
Up to 12 guests
Charter choices: 4 hours, or Angel Island 4, 8 or 12 hours
Departures from Alameda, San Francisco or Sausalito

Discuss your preferred departure and availability with Marquis Charters.

Compare charters

Three straightforward ways to spend time on the Bay — same catamaran, same capacity, same departure options.

Golden Gate Classic

Golden Gate Classic

4 Hours
Up to 12 guests
Alameda, San Francisco or Sausalito

Sail from the Bay out to the Golden Gate Bridge, passing the city skyline and Alcatraz along the way. A relaxed four-hour trip with time to take in the views and celebrate together.

Angel Island Discovery

Angel Island Discovery

4, 8, or 12 Hours
Up to 12 guests
Alameda, San Francisco or Sausalito

Make Angel Island the focus of your Bay outing. Discuss your preferred duration and itinerary when requesting a quote. Available as a 4, 8, or 12-hour charter.

Sunset Romance

Sunset Romance

4 Hours
Up to 12 guests
Alameda, San Francisco or Sausalito

An evening sail timed around sunset, with the Golden Gate Bridge and the lights of the city as your backdrop. Four hours on the Bay.

For your quote, mention Untethered and share your preferred date, guest count and route.

Untethered catamaran on San Francisco BayDeck of the Untethered catamaranUntethered under sail on the Bay

The boat

Untethered is an Excess 11 catamaran with a stable, spacious twin-hull layout and room to gather on deck or in the salon. She carries up to 12 guests and departs from Alameda, San Francisco or Sausalito.

How it works

A simple handoff: you share the details, Marquis Charters confirms availability and next steps.

  1. 1Choose your preferred date
  2. 2Note your guest count (up to 12)
  3. 3Pick a charter duration
  4. 4Tell us the occasion — birthday, family outing, team event or proposal
  5. 5Discuss your preferred departure with Marquis Charters
  6. 6Request a quote — Marquis Charters confirms next steps

Your inquiry does not confirm a booking.

Request availability & a quote

Tell Marquis Charters about your date, guest count and the route you have in mind.

Marquis Charters handles availability and quotes for Untethered. Your inquiry does not confirm a booking.