Aber Falls is a stunning waterfall near Abergwyngregyn in North Wales, plunging 37m over igneous rock into a rocky pool. The easy 2.2km trail to reach the falls is family-friendly with no steps and mostly flat terrain. Visitors can swim in small pools near the base of the falls when the weather allows. The car park costs £5, but there's no fee to visit the waterfall itself. Don't forget your swim gear for a refreshing dip!