Clarborough Tunnel

Signage Clarborough cpt Rebecca Dicks

  Signage Clarborough © Rebecca Dicks

Clarborough Tunnel

Clarborough Tunnel © Rebecca Dicks

A limestone grassland and scrub woodland covering 5 ha


Caddow Lane
DN22 9NE
A static map of Clarborough Tunnel

Know before you go

5 hectares

Entry fee

Access by permit only

Parking information

There is no parking but cars can be parked at the side of the entrance in Caddow Lane.

Grazing animals

There are grazing animals

Walking trails

Access by permit only. Please keep to the paths.


Access by permit only. The reserve is 3 miles from Retford on the Retford to Gainsborough railway line. Access is via the Retford to Leverton road, turning down a rough track (Caddow Lane) at SK752815 to Rathole Lane Crossing. Enter over a stile. Contact the Trust for more information.


On a lead
Dogs are allowed under effective control

When to visit

Opening times

Access by permit only

Best time to visit

April to July

About the reserve

This reserve consists of four sections; an old orchard and garden adjacent to the entrance, and 3 areas of spoil deposited during cutting of the railway tunnel in 1849 covered with dense woodland, scrub and grassland. Most of the reserve is over the tunnel itself. Many species of bird can be found in the scrub and woodland and a small pond on the reserve has been deepened to encourage a greater variety of pond life.

Contact us

Nottinghamshire Wildlife Trust
Contact number: 0115 958 8242
Contact email:

Environmental designation

Local Wildlife Site (LWS)
Site of Special Scientific Interest (SSSI)