Scilly555! 

8 - 12 October 2027.

Five runs/walks on Five Islands in Five Days!

The adventure holiday you won’t forget.

Whether you’re chasing your first 10k, an epic half marathon, a walk through island paradise, or the five most south-western marathons in the UK; The Scilly555 is your next adventure.

The 555 is an extraordinary week—accessible, inclusive, and unforgettable. From walking a single island loop at your own pace, to run-walking your first 10k, building up to your first half marathon, or tackling a marathon every day, this event truly has something for everyone.

One of the best things about this event is you can tailor it to how you feel every day. If you feel good, you can go further, if you want a more gentle day, you can do less. All the while knowing the course is marked and there are many people around should you need any support.

You also do not have to totally stick to the course, for some this year, they stopped off to walk around the Tresco Gardens, had a second breakfast at Karma hotel, went for fresh crab sandwiches and obviously called in for a Troytown ice cream. If the weather allows, you can also hire kayaks, SUP’s, do a vineyard tour. As you can see the potential is unlimited, it is an adventure for you to create and adapt to suit you every day, and with every route set against the breathtaking Isles of Scilly, the views are as rewarding as the journey.

If you can’t join us for the full week—no problem. Choose any day, pick your distance, and take part as a standalone event. This really is an event for you to just get the most out of an adventure week on Scilly.

Your 555! Options

5 Marathons • 5 Islands • 5 Days.  Total: 211 km / 131 miles

5 Half Marathons • 5 Islands • 5 Days.  Total: 106 km / 76 miles

5 Island Loops • 5 Islands • 5 Days.  Approx. Total: 55 km / 35 miles

Each distance uses a set number of clearly marked island loops.

Daily Time Limits

Marathons

6 hours 30 minutes, equivalent to 9:15 min/km or 14:45 min/mile

Half Marathons & Single Loops

At least 5 hours 30 minutes to finish

Half marathons: 15 min/km or 25 min/mile

Loopers: 2.5 km/hr or 1.5 mph (perfect for walkers and families)

Event Hub & Support

A dry indoor venue on each island provides the start/finish area

Access to toilets, hot and cold water, and shelter

Runners may leave a kit bag with personal food and fuel at the start point to access between loops

For the most convenient experience throughout the week, we strongly recommend staying on St Mary’s.

Cost: £350 for the week or £70 per day.

Adventure awaits.