Confidence on the water,
born from calm.
Master San Francisco Bay breezes, tidal currents, and coastal navigation. Taught through Captain Mary Swift-Swan's patient, no-yelling method.
Calm, Step-by-Step Sailing Certifications
Every course is taught by seasoned USCG-licensed and ASA-certified instructors. We keep student ratios low (never exceeding 4:1) so you get maximum helm time and personal feedback.
Basic Keelboat Sailing
Build foundational helm confidence in calm, protected waters.
- Tacking, jibing, and sail trim mechanics
- Points of sail & true vs apparent wind reading
- Crew Overboard (COB) recovery drills
- Seamanship knots, cleating & line handling
- Federal safety regulations & right-of-way rules
- Docking under auxiliary power & sail
Basic Coastal Cruising
Venture onto open SF Bay waters, managing tides, currents & breezes.
Bareboat Cruising (Liveaboard)
Qualify to charter sailboats anywhere worldwide independently.
Cruising Catamaran Endorsement
Master dual-engine maneuvering and wide-beam stability.
Docking & Close-Quarters Mastery
Eliminate docking anxiety in crosswinds and strong currents.
Advanced Coastal Cruising & Ocean Passagemaking
Experience open Pacific ocean sailing, bar crossings & night watches.
Meticulously Maintained San Francisco Bay Fleet
From our whisper-quiet electric 27' sloop on the calm estuary to ocean-ready 45' Beneteau passage makers and stable cruising catamarans. Available for bareboat checkout or skippered charters.
Zero emissions, whisper-quiet electric cruising on the Oakland Estuary.
Sleek Baltic lines, exceptional upwind pointing and robust hull.
Spacious beam, walk-through transom and comfortable family salon.
Legendary Bob Perry double-ender built for heavy Pacific swells.
Bright French styling, roomy cockpit and agile handling.
Ultra-stable dual-hull platform with forward trampoline lounge.
Our flagship yacht for offshore Pacific expeditions & executive charters.
Bay Dreamer is Electric.
Silent. Odorless. Zero Emissions.
As stewards of the sensitive San Francisco Bay & Oakland Estuary marine ecosystems, Afterguard completed a landmark full-electric conversion on our beloved Coronado 27 sloop, Bay Dreamer. Experience pure tranquility: no diesel fumes, no engine vibration, just the natural sound of wind across the sails.
Instant Reverse Torque
Frictionless docking maneuverability with electric digital throttle response.
Zero Hydrocarbon Runoff
Protects harbor seals, birds, and marine life in the Oakland Estuary sanctuary.
Silent Harbor Motoring
Quiet conversations at normal speaking volumes while motoring in and out of the marina.
Safe LiFePO4 Chemistry
High-stability lithium iron phosphate battery banks engineered for marine safety.
Sail the World with Afterguard Navigators
Take your sailing skills beyond California. Join Captain Mary Swift-Swan and our lead skippers on curated international flotillas aboard chartered modern catamarans and monohulls.
Amalfi Coast & Capri
Dramatic pastel cliffs, ancient coastal villages, secluded anchorages beneath Positano, and sunset dinners on the Isle of Capri.
10-Day Route & Anchorage Highlights
Sail Regularly Without the Burdens of Boat Ownership
Enjoy unlimited twilight community racing, discounted charter rates, free annual sailing credits, and walk-on boat access at Central Basin Marina.
Estuary Skipper
Ideal for weekend daysailers and evening sunset runners.
Bay Cruiser
Full access to open San Francisco Bay cruising yachts.
Offshore Voyager
Total access to catamarans, 45' flagships, and international flotillas.
Capt. Mary Swift-Swan
USCG 100-Ton Master • ASA Senior Evaluator of Instructors • 35+ Years Maritime Experience
Why the “No-Yelling” Method Creates the Best Sailors in the World
Many people enter sailing schools only to have a high-strung captain bark commands the moment a gust hits or the boat heels. At Afterguard, we believe fear stops learning. By explaining wind physics, anticipating vessel inertia, and practicing calm communication, our students make sound decisions when it counts.
Oakland Estuary Sanctuary to Pacific Swell Progression
We start basic docking and sail controls in the flat, protected waters of the Oakland Estuary before stepping out to SF Bay currents, Alcatraz tides, and the Golden Gate.
STEM Youth Camps & Veterans Sailing
Through non-profit community partnerships, we introduce local East Bay youth to oceanography and aerodynamics, while providing healing coastal sailing for U.S. military veterans.
Inclusive, Supportive Community
Whether you are 12 or 75, stepping on a boat for the first time or preparing for an ocean crossing, you are welcomed as a fellow sailor from day one.
What Sailors New to Afterguard Say
Read first-hand accounts from complete novices who passed ASA 101, to families taking bareboat charters under the Golden Gate Bridge.
“Captain Mary's 'no-yelling' style changed everything for us. I had taken a sailing class years ago elsewhere where the captain barked orders, leaving me anxious. At Afterguard, they teach why the wind behaves as it does, allowing confidence to build naturally. We now charter Nancy II every month!”
“Chartering at Afterguard is an absolute pleasure. Checkout was thorough, professional, and quick. Dawn Treader was spotless, with fresh lines, fully serviced diesel, and clear navigation overlays. Sailing past Alcatraz at sunset without crowds was sublime.”
“The catamaran endorsement with Captain Mary was hands-down the best instruction I've experienced in 20 years of maritime recreation. Twin-engine docking and mooring ball drills gave me complete certainty. Joining their Belize flotilla was the highlight of our year.”
“We hosted our executive strategy offsite aboard Ohana. The crew was exceptionally knowledgeable, pointing out marine mammals, local history of the Bay Bridge, and letting our team take turns at the helm. 10/10 recommend!”
Central Basin Marina • Oakland Estuary
We are nestled along the calm, protected waters of the Oakland Estuary. This prime location allows students to learn dockings and sail controls without combating severe open bay waves, before venturing out toward Treasure Island, Alcatraz, and the Golden Gate.
Exit I-880 at 16th Ave/Embarcadero. Turn southwest onto Embarcadero toward the waterfront. Central Basin Marina is located between Coast Guard Island bridge and Dennison St.
Frequently Asked Questions
Everything you need to know about our courses, bareboat charters, and safety protocols.