BigSea Trails

BigSea Trails 18 Miles

18 Miles·36m gain·Swanage, United Kingdom
trailcoastalloopbeginner friendly
Distance18 Miles
Gain36m
Date7 Jun 2026
StatusOpen

About This Race

A 18 Miles mixed-terrain run, Swanage, Dorset.

Elevation Profile

Elevation profile estimated from terrain data. Actual course may differ.

The course gains 36m over 29km, with the steepest section between km 14–km 14.

Location

Practical Info

Weather

Changeable coastal conditions, especially variable in winter months

Nearest Airport

BOH - Bournemouth Airport

Accommodation

Swanage and surrounding Purbeck area offer various accommodation options from seaside B&Bs to holiday cottages

Required Gear
  • 500ml fluid capacity
  • appropriate weather clothing

Best For

coastal runnersscenery seekersexperienced trail runners

Notable Features

The race showcases the dramatic Jurassic Coast with its ancient geological formations and iconic landmarks like Old Harry Rocks and Corfe Castle. As part of the Classic Element Trail Series themed around water, the event emphasizes the coastal environment that has shaped this rugged landscape. The cupless event format reflects environmental consciousness, and runners can opt for tree planting instead of finisher medals through the Trees Not Tees program.