Thanks Rachael - that looks brilliant and possibly a great way to introduce the kids to dogs more.
Edit - so went round with the kids today, from the old bromley road entrance. The playground is ok and has two water features the kids can run through. It has no shade so we didn't stay long.
Really nice cycle path, you really feel like you are in the countryside, the boys stopped off to dip their feet in the river. They also loved the fact you can see trains for part of the journey! Amazing meadow of dandelions and other yellow flowers. We stopped off on the way back at the 'main entrance' near homebase and the kids enjoyed rolling down the hills there.
All in all really nice - what a great park.