Swimrun in Paradise

Enter the Archipelago Swimrun event here

Scilly Swimrun 2026

Scilly Swimrun hosts the UK’s Only True Inter-Island Swimrun Events. 

When Mats and Micheal, the founders of swimrun racing discovered The Isles of Scilly, they called it the Swimrun Paradise! 

Sunday 12th July. The Archipelago, 32km.

The flagship swimrun event, A swimrun like nothing else in the UK. It’s time to fully immerse yourself in Scilly Swimrun.

There is a slight course change this year; we are starting and finishing on the beautiful island of St Martin’s.

There is a boat chartered for participants staying on St Mary’s.

This swimrun starts with a short but challenging run followed by 3 big swims totalling around 5km, broken up by what I feel is one of the best views on Scilly from the top of the uninhabited island of Great Arthur as well as a twisty turny run through the woods of St Mary’s. Once on Tresco, at the second aid station, you will be joined by the Northern Traverse swimrunners. This group start at 1300, some of you will be in front of them, some of you behind and some will be swimrunning together. You will visit 5 more islands before finishing back where you started completing the iconic Archipelago swimrun. 

This course is the flagship of the Scilly Swimrun Series. Expect technical running, island hopping, beautiful inter island swims, a possibility of seeing a seal, and a complete adventure in one of the most spectacular locations in the world.

Don’t forget to check out all the other swimruns over the weekend

Archipelago Swimrun – 31 km

Our flagship long-course event — the ultimate test of endurance.

  • Solo: £220 Early Bird. £250 from 1st Feb. £280 from 1st May.

  • Pairs: £400 Early Bird. £460 from 1st Feb. £520 from 1st May.

We are looking into a spectator package. More info to follow in the spring.

Enter the Archipelago Swimrun event here
Archipelago time and distance chart.

Mandatory Kit

  • Wetsuit – (NOT a Trisuit!)

  • Towfloat for solo participants

  • Whistle, easily accessible.

  • Foldable cup/soft flask

  • Teams must be either tethered or both have a tow float.

Optional Kit

  • Pull bouy / calf floats.

  • paddles

  • soft flask for water and or gels.

route GPX

Why Scilly Swimrun?

  • The only UK swimrun with authentic inter-island swimming

  • Courses featuring full island circumnavigations

  • Stunning routes through an Area of Outstanding Natural Beauty

  • Crystal-clear waters, rugged coastlines, and iconic island scenery

  • A welcoming community atmosphere with events for adults, juniors, and first-timers

Safety boat watching over swimrun participants

Frequently Asked Questions

  • A boat has been chartered to take participants from St Mary’s to the start Islands.

  • Temperatures in July are usually range from 14-16.

    Temperatures in August are usually in the range from 15 - 16.

  • We have a dedicated medical team both on land and sea. We also have a large water safety team in powerboats covering all the swims

  • The Scilly Swimruns allows both solo and team participants. If you can find another person to team up with, Race director, Wez believes that you take the strengths from both team members plus have an adventure to share.

  • We have many positives on Scilly; inter island swimming, quiet beaches, incredible trails with stunning views, crystal clear sea, a super friendly atmosphere with the emphasis on a great day out more than winning, but the quiet secret difference is that everyone has to stay over for a day or two, meaning you often see or participate in more than one event, and when your event is finished, there is no temptation to rush off, you can sit and enjoy celebrating with your fellow swimrunners and race team for the rest of the evening, and possibly for the next few days!

  • If you are on Scilly anyway, whether supporting a partner or friend or just on holiday and want to get involved, just drop us an email. Swimrun needs a big group of volunteers and its a great way to be part of something incredible.

  • During early spring we will sit with boat compaines to work out the best value options for spectators to follow the race.