Hmmmm.... well in all honesty i would have been disappointed if we'd had to pay full price - it cost us about £16 for two adults and dd, special needs is discounted and 1 carer gets in free. Full price would have cost around £25.. Does that make me sound mercenary?
They are currently doing loads of improvements (just been taken over?) - building a new huge indoor soft play area (July 09 opening), etc, and (hopefully) renovating/painting other areas etc - its OK but in places looks a bit 'shabby' iykwim. They are definitely making an effort to bring it up to scratch, i assume in time for summer.
The leaflet doesn't make it very clear so off the top of my head things there are - Rides (carousel, mine train, mini pirate ship, etc), Train that runs round the park, Falconry centre, Farm bit which looks 'temporary' but very clean, LOADS of outdoor play areas for different ages, butterfly house (dd hated this lol), big conifer maze, couple of cafes, one with an attached indoor soft play, and a few other bits.
We were there about 4 hours but dd potters and gets obsessed by one thing so today we just went with it and relaxed Food was reasonably priced too.
HTH!