Park at The BeachPub, pay £2 fee, go in, buy half of lager and packet of crisps (£2.40) get £2 refund for the car park. Cheapest parking around for 40p!
There is a good, new adventure playground at the Rakewood end of the lake, along with a bridge over the stream for playing pooh sticks. There's usually an ice cream van here too :-)
The visitor's centre is interesting with toilets and a reasonably priced cafe. Halfway round the lake is also a cafe with toilets. Be sure to bring lots of 2p coins for the amusement arcade!