The following text is from the original listed building designation:

TR 23 NW FOLKESTONE
737/10/10012 Pulhamite Caves
10-OCT-00
GV II
Artificial rock face. Built in 1921 to provide an easy ornamental walk without steps or steep slopes between the Upper and Lower Leas at Folkestone. Built of Pulhamite, an artificial stone, on a base of burr bricks and aggregate about 50 metres high and 50 metres wide. It comprises a zigzag path linked by Pulhamite features including seating bays with wooden benches and planting bays and includes a Pulhamite Rock arch about 8 feet high and 8 feet wide, a cave of about the same dimensions with seating, a grotto of three linked caves, the end one supported on a thin vertical rock, and a much larger cave about 30 feet by 20 feet with two openings. One of its purposes was to provide employment after the First World War.
Listing NGR: TR2233935463

Description from record TR 23 NE 209:
Artificial rock face. Built in 1921 to provide an easy ornamental walk without steps or steep slopes between the Upper and Lower Leas at Folkestone. Built of Pulhamite, an artificial stone, on a base of burr bricks and aggregate about 50 metres high and 50 metres wide. It comprises a zig-zag path linked by Pulhamite features including seating bays with wooden benches and planting bays and includes a Pulhamite rock arch about 8 feet high and 8 feet wide, a cave of about the same dimensions with seating, a grotto of three linked caves, the end one supported on a thin verticle rock, and a much larger cave about 30 feet by 20 feet with two openings. One of its purposes was to provide employment after the First World War. This structure has been listed in its own right and has group value with the listed Leas Cliff Hall.

English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.