Directions from castell-y-bwch, torfaen to london

Head east Turn right towards Leach Rd Take the 1st left on to Leach Rd Turn right onto Itchen Rd At the roundabout, take the 1st exit onto Monnow Way

Go through 1 roundabout

At the roundabout, take the 1st exit onto Bettws Ln Turn right onto Malpas Rd/A4051 At the roundabout, take the 1st exit onto the M4 slip road to Bristol/London Merge onto M4

Entering England

Continue onto Great West Rd/A4

Continue to follow A4

Go through 1 roundabout

Turn right onto Knightsbridge/A4

Continue to follow Knightsbridge

Turn right onto Duke of Wellington Pl Slight left onto Constitution Hill

Entering toll zone

Turn left onto The Mall At the roundabout, take the 2nd exit onto Trafalgar Square/A4

Destination will be on the left