Walpole Bay Tidal Pool was built in 1937, one of two tidal pools constructed at the same time in Margate, the other at Marine Terrace opposite Cliftonville Lido. * Group value: situated quite near the remains of the 1824-6 Clifton Baths (Grade II), an 1935 lift and the other 1937 tidal pool. * Degree of intactness: intact apart from the loss of the two diving boards which do not often survive * Social historical interest: provided an improvement to sea bathing at the period of the greatest popularity of the English seaside * Scale and design: impressive in scale and shape, occupying 4 acres and three sides of a rectangle, the sides 450 feet long diminishing towards the seaward end which was 300 feet long * Structural engineering interest: an ambitious project because of its scale, the weight of each concrete block, and that work needing to be carried out day and night because of the tides Walpole Bay Tidal Pool, one of two tidal pools designed by Margate's borough engineer in 1937, constructed in concrete blocks reinforced by reused iron tram rails, is listed at Grade II for the following principal reasons: