Lydstep Cliffs in Pembrokeshire are a sight to behold and a lovely short circular walk. There is plenty of greenery, home to various wildlife, including butterflies and all sorts of birds. You may even spot a dolphin or two in the water.
If you park in the nearby car park, the walk clocks in at around a mile, but you can make it a little longer by going from nearby Lydstep village.
If you bear right from the car park, you can access the caverns down below, which kids will love exploring, although beware that the caverns are only accessible during low tide.