As people on this forum point out continually, one size advice does not fit all when it come to location of bees. South east has been bone dry for several months, apart from odd heavy shower. Ground is bone dry and cracked, with most watercourses very low even for June. I'm assuming Wales and the South west have luckily received more rain.
3 out of 5 of my apiaries have ponds / streams nearby. Other 2 are on hills, with nearest natural supply I am aware of at least one and a half miles away. These 2 are watered using chicken water feeder and trays with gravel in. During the recent hot weather I was topping up with gallon and a half each weekly inspection. Can't say how much the visiting bees use, how much other creatures used or how much evaporated, but it all went.
I would also rather provide water then the bees causing a problem at the landowners house which has happened before.
Up to individuals to assess their circumstances locally and acts accordingly