Sunday 28 July (Field Meeting): Nottingham's Sandstone Caves, led by Tony Waltham. (Engineering geologist and karst specialist). Meet at 10.45 at bollards at the west end of Cliff Road, Nottingham, NG1 1GZ. Nearest car park is Lace Market Car Park, Pilcher Gate, NG1 1QE (about 100 yards to the north). Enter caves at 11.00. The tour will take around one and a half hours. Please do not be late. Anyone arriving after 11.00 will not be able to join the cave tour. Numbers limited to 20. Helmets not needed. Torches needed for some parts. The caves are not suitable for wheelchairs or young children. Afterwards we will have a walk through the town to the Tunnel and Castle Rock, with a possible walk via the Church cemetery, time permitting. Aim to finish around 4.00.