In reply to roochop:
I can see Castle Rock from my bedroom window. It's not worth travelling any distance to visit but if you live in Chelteham it's quite handy for an hour or so.
Don't get too excited it's not very high and every winter takes it's toll. It's very polished and loose in places especially on the exits to the routes. Despite that some of the routes pack a punch for their meagre length and a couple of the severe crack routes are actually quite good. There are stakes at the top. Parking can be difficult. It's possible to drive up to just beneath it but in recent years people have had problems doing this. The alternative parking is the golf course but it's a fair walk from there
What ever you do, do not venture onto the crags away from Castle Rock, those marked as the Main Cliff in the guide, Even though the guidebook gives some routes stars, they are lethally loose and friable. I personally think encouraging anyone to climb on here is downright irresponsible. As long as the kids don't stand directly beneath the routes they should be fine.