Check out the Zap map to find charging points across the UK.
Many charging points in the UK are free.
As you may have already seen various attractions likes restaurants, pubs, cafes, theatres, garden centres, zoos, leisure centres, campsites and natinal trust properties offer free charging.
It's likely that most free charging points can be found at car parks, wether it be payed car parks , retail car parks, supermarket car parks or the car park at your work place.