The map
479 yachts at their last recorded position — 182 in port, 239 at anchor and 58 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 (182) At anchor (239) Underway (58)
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.