Archipelago Swimrun

JUL
12
2026
An inter-island swimrun across the Isles of Scilly on 12 July, covering about 31 to 32 km with long open-water swims, technical island runs, solo and pairs categories, and on-water and on-land medical support.
Sun 12 Jul 2026
Archipelago

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Archipelago Swimrun

The Archipelago Swimrun is an inter-island swimrun event on the Isles of Scilly scheduled for Sunday 12 July. The route covers island-to-island sections and is around 31 to 32 km in total, with three big swims totalling about 5 km and multiple running sections that include technical terrain and wooded trails.

This year the course starts and finishes on St Martin’s. Participants will pass islands including Great Arthur, where there is a notable viewpoint, Tresco, and several other islands before returning to the start. A boat has been chartered to transfer participants from St Mary’s to the start islands. At the second aid station on Tresco the Archipelago field meets participants from the Northern Traverse route.

Both solo competitors and pairs are permitted. Mandatory kit includes a wetsuit (not a trisuit), a towfloat for solo participants, a whistle, and a foldable cup or soft flask; teams must be tethered or each carry a tow float. Optional equipment listed for participants includes pull buoys, paddles, and soft flasks for fluids or gels.

Race safety measures include a medical team on land and sea and a water-safety team in powerboats. Entry fees vary by category and booking date with higher fees from February 1 and May 1 respectively. Visit the organization's website for the most recent information.

32 km
Archipelago
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