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Mountain biking trails

South West England

The Portway – Old Bridge on the Portway loop from Idmiston

Mountain biking trails

South West England

The Portway – Old Bridge on the Portway loop from Idmiston

Moderate

4.7

(3)

2

riders

The Portway – Old Bridge on the Portway loop from Idmiston

02:24

32.2km

260m

Mountain biking

Moderate mountain bike ride. Good fitness required. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: August 18, 2026

Waypoints

A

Start point

Bus stop

1

2.17 km

Portway Tunnel Entrance

Highlight • Bridge

Turn left up to Portway

Tip by

2

3.53 km

Abandoned Bridge on the Portway

Highlight • Viewpoint

Nice track along the Portway from Palestine to Portondown.
Abandoned bridge along the route.
Great views across the fields towards Boscombe Down

Tip by

3

3.87 km

View of Boscombe Down from Portway

Highlight • Viewpoint

Very nice track to ride or walk. Can get muddy in some areas in the winter.
Great views looking towards Boscombe Down over flowing / moving field crops.

Tip by

4

5.38 km

The Portway

Highlight • Cycleway

The Portway (or Port Way) is an ancient road that once ran between Calleva Atrebatum (Silchester, in modern-day Hampshire) and Sorbiodunum (Old Sarum, Wiltshire). Though often credited to the Romans, the original route may have pre-dated Roman occupation.

Tip by

5

7.09 km

Old Bridge on the Portway

Highlight • Bridge

Old bridge
Some fallen trees near by to have a picnic or quick stop about halfway point along the Portway

Tip by

16.5 km

Markway Firs

Forest

7

20.1 km

Salisbury Plain Byway Access Point

Highlight • Cycleway

Another access point onto Salisbury Plain.
Always follow the marked Byways on the plain.

Tip by

24.2 km

Rollerhouse Belt

Forest

9

28.8 km

River in Idmiston

Highlight • River

Nice walk to make a loop back onto the Portway .

Tip by

B

32.2 km

End point

Bus stop

Way Types & Surfaces

Way Types

10.9 km

8.94 km

8.89 km

2.54 km

853 m

< 100 m

Surfaces

17.6 km

10.5 km

2.83 km

1.16 km

< 100 m

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Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (160 m)

Lowest point (60 m)

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Weather

Powered by Foreca

Sunday 11 October

19°C

12°C

52 %

Additional weather tips

Max wind speed: 17.0 km/h

to get more detailed weather forecasts along your route

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