- Jesus Green Outdoor Pool in Cambridge is the UK’s quietest lido (3 hashtags) - Parliament Hill Lido in London (6) and Heathersage Pool in the Peak District (8) are also in the top three. - Devon is home to two of the top ten quietest lidos: Buckfastleigh Open Air Pool, and Chagford Swimming Pool. - London and Cornwall are home to some of the most in-demand outdoor pools.