A couple of months ago I bought a dog pool for Luna (and friends) and with the upper twenty temperatures we've enjoyed today Alfie helped me set it up this morning.   Arthur (Alfie's 5 month old Labrador) absolutely loved it, Luna was hesitant (and still is) and Charlie kept well out it's way.   I must admit it's been lovely taking a paddle myself to cool down this afternoon.
Luna wasn't impressed when Arthur took her toys and dropped them in the water one by one, as they were already wet it was an ideal time to put them through the washing machine.   A line full of toys in extras.