DH and I are taking our 5yo and 2yo to the Peak District over the Easter weekend. We're going to Ilam Park/Dovedale on Sunday but I'm a bit stuck for what to do on the Saturday. I was looking at the various caves: Poole's Cavern, Speedwell, Treak Cliff and thought they might like the cable car at the Heights of Abraham - anyone have any experience and would you recommend any of those? Any other ideas? Thanks!