Hi,
The best places in Derbyshire for day ticket waters and even a quick overnighter are:
William Thorpe and Hardwick Hall lakes both available on day tickets and both hold 30's
williamthorpe is a £45 per season 30's carp water which has 5 ponds I think number 2 holds the biggest fish, mulberry has performed well and so has corn
Hardwick 2 lakes again 30's but get's busy with tourists in summer months this has recently had a haircut so to speak with all the hedges around the lakes being cut back and allowing for new locations to fish from. The dam wall is for coarse angling and popular with pole fishing where as the lake with the island at the bottom is popular with carp anglers, this is not a very deep water or at least does not appear that deep.
Not sure on the rules for either sorry!
Also heard rumours about clumber park holding two 40's Pinky and perky so have a look at that one too!