Start : Mid-Calder, Torphichen Arms, EH53 0AR
(S) With your back to the Torphichen Arms turn right, and then immediately right again down Gasworks Brae into a small park.
(1) Cross the leftmost bridge to find a path which takes you beneath the imposing stone arch of the old coaching-road. Beyond, climb the steep flight of steps, turning left as the top is gained. A good path leads through trees and alongside a field to reach a cross-path. Rise up to the cross-path.
(2) Turn right and follow the cross-path as it meanders alongside the R. Almond. Pass the modern sewage works. Cross the R Almond at the bridge immediately below the weir.
(3) Once across the river, the route follows the canal feeder and river downstream all the way (2.5 miles) to the Union canal.
(4) Pass beneath the imposing railway viaduct using the quaint old shelter. Leave the feeder channel when it is cleverly routed across the river, instead just carry straight on following the riverside path downstream all the way to the Ranger Centre (A).*
(5) On leaving the Centre, carry on downstream. Almost immediately, beyond the old stable block (now toilets) bear right and cross the suspension bridge (B) and (C). Carry on over many stiles, and through many gates.
(6) Just before reaching the canal aqueduct (D) climb to the right up steps. Turn left and slant down to pass under the canal. Once through, immediately climb steep stone steps on the right to arrive at the canal basin. At the top of the stone steps, turn left towards Edinburgh.
(7) Follow the towpath, for a mile, until a signed footpath to Platt Hill branches off.
(8) At the Platt Hill junction take the footpath along the field edge and pass alongside the busy motorway slip-road.
(9) On nearing the summit of Platt Hill be sure to detour slightly right in order to look down into the indoor climbing area (E). Return to the path to continue ahead and onwards, along a quiet, tree-lined, old lane, to emerge in Ratho.
(10) Turn right, to reach the delightful Ratho Church. Immediately after Ratho Church re-join the canal.
(11) Turn left towards Edinburgh. Walk for two miles along the towpath to bridge number 12 (F) at Hermiston.
(12) At bridge 12, rise up to the road. Turn right, cross the canal and walk a short distance, past the cottages of Wester Row on your right, and so reach the main A71.
(13) Turn left along the A71 to arrive at the end of leg 3, at Long Hermiston, North entrance to Heriot-Watt University grounds. (E)
The Heriot-Watt bus-stop lies a few dozen paces to the left along the A71. First buses 27/28, for Edinburgh, stop here (approx every 15 mins).