To take a holiday on a boat, moving from place to place and spending nights away from base. The nights maybe passed under way, at anchor, or even in splendid hotels ashore, but the normal thing is to sleep aboard. One may cruise in an open boat, on the sea or on inland waters. The main thing, as Hilaire Belloc was at pains to emphasise, is that cruising is not racing. Another way of not racing is to go ‘day-sailing’, a term which implies that the boat returns to the same haven each night.