Best time to go
Go earlier in the day for the lit walk if you want to look closely at the formations or take photographs. Later in the day the lights are switched off and ultraviolet torches are supplied, which makes the calcite glow but hides the detail, so pick the version you actually want. It works well as a wet-weather or hot-weather plan because the temperature underground never changes. Allow extra time if you also want the family activities and the cafe, and expect company: this is a popular stop and the passages are tight enough that you will be sharing them.
