There is a moment, about twenty minutes into a first sail on an America’s Cup yacht, when the boat accelerates through 12 knots and everything the guest thought they knew about sailing suddenly feels insufficient.
The boat is 75 feet long. The mast is 110 feet tall. The mainsail has more square footage than a two-bedroom apartment. And right now, a professional sailing team that has actually raced these boats in international competition is asking the guest to grind a winch — one of the massive carbon-fibre pedestals in the cockpit — as fast as the muscles will manage, because they are tacking in 30 seconds and the genoa needs to be sheeted in before the bow crosses the wind.
The guest grinds. The boat tacks. The sail fills. The guest is sailing an America’s Cup yacht.
Where this happens
San Diego hosted the America’s Cup in 1988 and 1992 — two of the more dramatic and controversial editions in the event’s 150-year history. The boats that raced those events, and others from the IACC era that followed, are maintained by operators on Shelter Island and made available to paying guests for two-hour racing experiences on San Diego Bay.
This is not common. Most America’s Cup yachts from this era have been sold to private collectors, put in museums, or converted to display vessels that don’t sail. A handful of operators in a handful of cities around the world maintain actively sailing Cup boats. San Diego is one of the better places to access them — partly because the boats raced here, partly because the bay’s consistent afternoon thermal makes for reliable two-hour windows, and partly because the local sailing community has chosen to preserve the experience rather than retire the boats.
What the boat actually is
The boats typically used for these experiences are IACC (International America’s Cup Class) monohulls — the rule that governed the Cup from 1992 through 2007. An IACC boat is 75 ft long with a 110-ft carbon mast, displacement around 25 tons, and a sail plan of roughly 3,000 square feet upwind. They were the pinnacle of grand-prix monohull racing for fifteen years and remain among the more highly engineered racing sailboats ever built.
For scale: the boom extends 30 ft behind the mast. The keel drops 14 ft below the waterline and weighs 20 tons — more than half the boat’s total displacement. The winches require two people grinding in opposite directions to generate enough load to trim the sails. The primary sheets are loaded to tensions measured in tons.
These are not the boats anyone learned to sail on. They are also, emphatically, not sailing themselves. They require active, coordinated crew input to sail well, which is what makes the experience genuinely engaging rather than a spectator ride.
What actually happens
The briefing comes first — 20 to 30 minutes dockside while the professional crew explains how the boat works, what the guest’s role will be, and what to expect. This is not perfunctory. IACC boats require the crew to move in specific ways at specific times; the wrong position at the wrong moment can put a guest in the path of a sheet under tension or a boom sweeping across the cockpit. The briefing is thorough because the boat demands it.
Then the boat casts off. The harbour exit from Shelter Island takes about 15 minutes under motor — IACC boats don’t sail well in confined spaces — and then the bay opens up with the breeze coming in from the northwest.
The sails go up. This is the first moment when the scale becomes real. The mainsail unrolls from the furler and keeps going, and going, until the head of the sail is barely visible against the sky. The boat heels slightly. A ripple of pressure moves through the rig. The boom lifts. The captain calls for the headsail.
Now the boat is sailing.
On the winches. The primary winches on an IACC boat are two-speed pedestal grinders with handles cranked in a bicycle motion. It is hard physical work. Most guests rotate through two to four grinding sessions during the two-hour experience. Each session lasts 30–60 seconds at high intensity. The arms remember it the next day.
On the helm. Most operators give guests time at the wheel. The steering is hydraulically assisted but the feedback is direct — the boat communicates through the wheel in a way that smaller boats don’t. A 75-ft boat turns slowly relative to its speed; the guest learns to anticipate the inputs. Oversteering is the universal first mistake.
On sail trim. The professional crew handles the complex trim decisions, but they will often hand a guest the headsail sheet and explain what to look for at the luff — the slight curl that signals a half-degree off optimum. Watching the telltales on a sail this size, in a breeze this consistent, is a working masterclass in what sail shape actually does.
The speed
An IACC boat in 12–15 knots of San Diego’s afternoon thermal will sail at 10–13 knots upwind. Off the wind, broad-reaching across the bay, 14–16 knots is workable. This is not extraordinary by modern AC75 foiling standards, but by the standards of conventional monohull sailing — which is the working reference point for most guests — it is significantly faster than anything they have experienced.
The sensation is hard to describe accurately. Speed on water doesn’t feel the way speed on land does; there is no visual reference rushing past, no engine sound, no vibration. What the guest feels is pressure — the rig loads up, the boat heels to 20–25 degrees, the bow wave builds alongside the hull, and the wake stretches behind like a motorway. The sound is the bow cutting water, the wind in the rigging, and the occasional snap of a sail loading.
Cost and fit
Two-hour shared experiences typically run $150–200 per person on charters of up to 16 guests. Private full-boat charters for groups run $2,500–4,000+ depending on the operator and season.
The experience is appropriate for complete beginners — the professional crew handles everything that requires expertise, and guests participate at the level they are comfortable with. It is also engaging for experienced sailors who want to understand what a grand-prix racing yacht actually does. The most satisfied guests tend to be people who already sail and have wondered what the top of the sport feels like. The answer, on the working day, is physically demanding, technically fascinating, and occasionally terrifying in the best possible way.
Practical notes.
- Book in advance, particularly summer weekends — these are small operations with limited capacity
- Wear flat, non-marking rubber-soled shoes
- Bring a windproof layer regardless of air temperature; apparent wind at boat speed is significantly cooler than the ambient
- Secure loose items; the boat heels more than anything most guests have sailed before
- Minimum age is typically 8–10 years; check with the operator
The context that matters
San Diego Bay is where these boats raced in competition. The 1992 America’s Cup — hosted on this water — was the last fully IACC edition before the foiling-cat era. The wind patterns on the bay, the Point Loma headland to the west, Coronado Island in the distance — this is the exact geography that framed Cup racing for a generation of professional sailors.
Knowing that history while on the boat changes the experience. The winch the guest is grinding was ground in anger by professionals competing for sailing’s most prestigious trophy. The marks the boat is rounding were set in roughly the same positions for actual Cup races. The breeze filling the sail is the same San Diego thermal that determined race outcomes in 1988 and 1992.
It does not make the guest sail better. But it makes the experience feel like it belongs to something larger than an afternoon charter — which, on the Pacific Coast at least, is exactly what it is.
Related: San Diego Bay Cruising Guide · Sailing San Diego Bay · San Diego America’s Cup History · Southern California Cruising Guide