Two Tunnels Greenway
Frome Road, Twerton, Bath BA2 1EQ
Free
The Two Tunnels Greenway begins at the western edge of Twerton and runs 13 miles south through two Victorian railway tunnels toward Radstock. The Combe Down Tunnel at 1.6 miles is the longest cycling tunnel in Britain — internally lit throughout, silent except for tyres on tarmac, cut through solid Bath stone. The route is shared walking and cycling, traffic-free, and surfaced well enough for road bikes. The northern trailhead is 10 minutes' walk from Twerton High Street.