Marathon Course Description - (2 Laps, Half Marathon is 1 Lap)There is a cut off time of 3hrs to complete 1 lap of the marathon, approximately 13.3 miles.
Start times from 10:00am. Please see the Event Info page for Provisional Schedules.
The first mile of the course is on the Two Tunnels Greenway shared path along Linear Park. It is on a slight incline up to Devonshire Tunnel which is the first of the Two Tunnels. Devonshire tunnel is 408m long and is well lit. The course gently curves round to the left through the tunnel. Next runners emerge in Lyncombe Vale and run along the elevated embankment through a very pretty wooded area.
1km of running along the top of the embankment it is time to enter
Combe Down Tunnel which is 1672m long making this the foot race with the
longest underground section in Britain! The Northern side of Combe Down
tunnel is 50ft higher than the Southern portal which ensures a cool
breeze circulates through the tunnels. The tunnels themselves are lined
with a combination of bricks and the exposed limestone rock through
which the tunnels were originally bored.
Upon exiting Combe Down Tunnel runners head over Tucking Mill viaduct. Runners turn left after crossing the viaduct and towards the steps to Tucking Mill reservoir. Following the public footpath leads runners onto Tucking Mill Lane past the house of the world renowned Geologist William Smith who produced the first Geologiclal Map of the country. Tucking Mill Lane is not being closed by the race so there may well be traffic along this section. Please be careful, stick to the left hand side of the road, and follow the direction of the marshals.
The Marathon race forms part of the Two Tunnels Challenge. All runners who complete the Two Tunnels Challenge will be awarded with a special laser engraved glass trophy to mark their achievement (shown below). Plus, the three medals from the three individual events.
Two Tunnels Challenge = 10km + Half Marathon + Marathon
You decide the dates; Two Tunnels 10km (1st March OR 10th May OR 12th July) + Two Tunnels Half Marathon (10th May OR 12th July) + Two Tunnels Marathon (16th August)