Check the same forecast every morning, share a car to the coast, hold a local pecking order that is enforced in the water, travel in small trusted groups, and keep the good days quiet. Forecast services used as a daily ritual, local breaks as the real social unit, surf camps and charter operators with repeat clients, and small closed groups rather than public forums.

The lineup, dropping in, a session, sets, offshore, it is firing, a groveller, a step-up, the paddle out, dings and wax, boardbag, localism as a named and defended thing. The charter season windows, the surf-camp booking calendar, and the competition tour stops, which are themselves swell-dependent and run on waiting periods rather than dates.

That waiting-period structure is unique in this catalog: an event with a window rather than a date. The Indonesian dry season from April to October drives the boat-trip and camp economy.

The North Atlantic and North Pacific winters from October to February drive the chasing season, when the biggest swells arrive.