Just after the old Fish Market building, turn left along Old Billingsgate Walk then left again at the end, along Lower Thames Street. Walk back to the pedestrian crossing in front of the church and cross the road, then turn left and walk up Fish Street Hill, passing Monument on your right.

At the top of Fish Street Hill, turn left along Eastcheap and follow it until you see a pedestrian underpass (also marked Underground). Take the first set of stairs and at the bottom turn right, then go straight ahead, following the signs to Cannon Street.

Take the Cannon Street exit, and at street level turn left along Cannon Street until you reach Laurence Pountney Hill (the third turning on your left). Turn down Laurence Pountney Hill and just after Suffolk Lane, see the two merchants' houses at number 1 and 2 (on your right), which were built in 1703.

Return to Cannon Street, cross the road, turn right then shortly turn left along Abchurch Lane to the junction with King William Street.

At King William Street turn left and continue until you reach Mansion House Place, just after traffic lights. Follow this lane straight ahead then veer right, opposite a small churchyard. Stop at the end of the lane, where it joins Walbrook Street, in front of the church.