Sandilands Tunnel
| A tram exiting Sandilands Tunnel | |
| Overview | |
|---|---|
| Line | Tramlink, New Addington, route | 
| Location | Croydon, UK | 
| Coordinates | 51°22′23″N 0°04′30″W / 51.373°N 0.075°W | 
| Status | Open, operational | 
| Operation | |
| Work begun | 1885 | 
| Owner | TFL | 
| Operator | Tramlink | 
| Technical | |
| Length | 545 yd (498 m) | 
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | 
Sandilands Tunnel is an ex-railway, brick arch tunnel in south London, currently serving the Croydon Tramway, which cuts through the Park Hill area on the eastern border of Croydon and serves as a key section of the Tramlink route connecting central Croydon, from West Croydon to New Addington.