What should I confirm before choosing island day trips and boat tours?

Island trips range from public ferries to speedboats and private charters. Confirm the operator, insurance, lifejackets, sea conditions, inclusions and final return arrangements. Confirm current hours, location, prices, accessibility, photography rules and booking conditions directly. Sea-trip note: Ferry schedules, sea conditions, prices and last departures change. Confirm the return plan, operator, lifejackets, weather and inclusions on the day.