Cyclists with claustrophobia—and a fear of bats—had best sit this one out.
Britain’s longest bike tunnel is set to open this weekend in the scenic countryside near Bath, England. At just over a mile long, the Combe Down Tunnel completes the Two Tunnels Greenway, a four-mile stretch of former railway now converted to a dedicated walking and cycling path.
Closed for almost 50 years, the newly lit, cleaned and paved tunnel is now part of Britain’s 14,000-mile-long National Cycle Network. It was a joint project between local authorities and Sustrans, the U.K. non-profit that founded and continues to expand the NCN.
Although the Combes Down Tunnel will now enable a clean form of transportation, the unventilated underground stretch was once infamous for being “a place of choking smoke and red-hot flying cinders,” writes the Guardian.