Confirm the boarding dock, arrival time, trip length, vessel type, restroom information, seating, mobility requirements, age rules, and what participation actually means. A “sail” may be a relaxed ride, a narrated outing, an instructional experience, or a private charter; those are different afternoons.
Read the operator's weather and cancellation terms before paying. Captains make the final safety call, and a gray sky does not automatically mean cancellation. Wind, thunderstorms, visibility, and marine conditions matter more than the icon on a general forecast. Build the weekend so a delayed or canceled departure does not erase the trip.
Wear secure footwear and bring layers appropriate to the operator's instructions. Wind and spray can make the boat feel cooler than a sheltered brick street; sun exposure can be stronger than expected. Keep loose hats, phones, and bags manageable, and ask ahead about life jackets, storage, food, drinks, and accessibility rather than improvising at the dock.