Edit
Click on the map: 1st click = departure, 2nd click = destination. The markers can then be dragged, or placed again with a right click or a long press. The ⌖ button on the Departure row places the departure where your device is, and ⇅ swaps departure and destination.
Start with your boat
Its polar sets the speed of every route. Choose it, then come back here: the trip placed on the map is kept.
Depths EMODnet (chart datum) in Europe and the eastern Caribbean, GEBCO 2026 (mean sea level, without tide) elsewhere, land © OpenStreetMap contributors. Not for navigation.
Computing the routes…
On the sea
One row per leg: a new one at each tack or gybe, when the engine starts or stops, or once the heading strays more than 10° from the leg’s first. Click a time to see the boat there on the map. With watches, a leg is also cut where the watch is relieved.
Signed in, you find your boat and its trip again on every browser where you sign in: computer, phone or tablet.
Saily WR stays free and works just the same without signing up.