The map
539 yachts at their last recorded position — 170 in port, 287 at anchor and 82 underway. Positions are rounded to roughly 100 m and refreshed with the record, at most hourly: a snapshot as of , not a live feed.
In port (170) At anchor (287) Underway (82)
Overlapping yachts are spread slightly for legibility — within a harbour the dot marks the port, not the berth. Yachts unseen for more than a day are not shown. How positions are published.