Swimming pools feel too cold

Apologies if this makes me sound like a troll. In all my experience of indoor swimming pools, despite all the swimming I do to warm up, the pool seems cold. At the pool I visit every week, there is an electronic LED board with the temperature and the pool I swim in (for average swimmers who can't tread water - deep end about 5ft to 6ft, shallow end suitable for a youngster of 4+ years) is 27 or 29 degrees celcius. This swimming pool is local to where I went to school and I remember having to use the baby pool (when I was young enough!) which was 31 degrees celcius and this was warm enough to not shiver. I try to tackle this by always keeping my shoulders below the water and always keeping on the move at pace to keep warm but I can't help but find the water is cold. This is a real shame as it takes away my enjoyment and satisfaction that I am benefitting my health because it prevents me from covering some real distance and pushing myself (within reason). To make things worse, I have looked at other pools on google local to where I live and for the ones with websites and which state the temperature, it is 27 degrees celcius which seems to be the norm so it looks like I won't be able to find the right pool (all pools mentioned in this pool are indoor). :( What can I do?