1 / 4   Situated in Cambridge, in the UK, Jesus Green Lido, one of the longest lidos in Europe, got repainted blue on Thursday in preparation for reopening this summer. The lido opens for public swimming from May to September every year. /VCG Photo  

2 / 4   At 91 meters in length, the lido is much longer than it is wide. The design was inspired by the idea of swimming in the nearby river. /VCG Photo

3 / 4   Trever Williams, 53, is one of the workers responsible for painting the lido. It will take the workers four to five days to finish painting. /VCG Photo

4 / 4   Opened in the 1920s, Jesus Green Lido is one of a few open-air swimming pools in the country and has witnessed numerous historical changes over the years. /VCG Photo