Incredible map shows every single lido in the UK - with one region massively missing out
The public pools are a thing of British culture, except, it seems, for one corner of the UK.
In the early 20th century an explosion of outdoor polls opened across Britain. They took the name "lido", from the Italian word for coastline, and soon everyone and anyone could go for a dip in the warm summer sunshine without having to go very far.
It is a tradition that has continued up until this day, with more than a hundred lidos dotted around the country.
They are, however, more prevalent in some areas than others, with a clear north-south dividing line.
And one UK country in particular has a complete dearth of public pools.
According to All The Lidos, a guide to outdoor pools in the UK, there are more than 160 lidos across England, Wales, Scotland, Northern Ireland, and the Channel Islands.
Of the pools that they include in their criteria, each must be big enough for a swim and not require some sort of membership or fee.
A map shows all of Britain's lidos, from outdoor swimming pools to open-water venues, water parks to tidal pools.
Each is open at different times of the year and for certain periods.
The majority of England's venues are concentrated in the south of the country, with scores across London.
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A high number of pools are also scattered across the southwest.
Things spread out the further north of Birmingham.
There is a smattering of lidos in Scotland, while Northern Ireland has two.
The fewest come in the form of Wales, where Ponty Lido, in Pontypridd, serves as the only public outdoor swimming pool in the whole of the country — one for three million people. It's only right, then, that it is known as the National Lido of Wales.
In the 20th century, lidos became mainstays along seaside towns such as Scarborough and Blackpool.
The majority were designed between the 1920s and the 1940s, in the post-WW1 years when outdoor sports were seen as vital in boosting the country's morale.
Many of those built back then drew inspiration from the resorts of Europe, featuring exotic designs and characteristics.
Some of the most iconic lidos can be found in the art deco sits at Saltdean, Plymouth, and Penzance.
Some sites, like that at Broomhill in Ipswich, lay empty and dormant, with revellers keenly awaiting their potential restoration.