I live just about as far away from the sea as you can get, so, although it's just about feasible, a day trip involves an early morning and long car journey. So during hot weather I make do with Carsington Reservoir.
At the moment with water levels low, it looks quite like sea lazily lapping a stony beach. There's no paddling allowed, but there are yachts and canoes so it's possible to pretend you're near a marina or harbour.
Along our way, we came across these carvings - a wizard, dragon, elf and tiny fairy houses. Perhaps they were all part of Hob's trail, but we never anything to tell us.
A good sort of day though, and almost like being by the sea :)