It used to be THE best non-theme park in the East Mids as it was cheap, basic and good fun with few frills, but enough to keep kids entertained. It had a concert/ ballroom, and a reasonable restaurant.
I used to go there about 60 years ago and it is a place that I have fond memories of, as a kid of 8-9 yrs old and 60 years later, the train, the water chute, the slides, the bumper cars and the little cars on a track are still there. I think that the water chute has some kind of preservation order on it.
Now, however, it's very dated. It only keeps going (I think) as it's held in a trust by the Wicksteed family. I reckon once that trust agreement ends, it'll be sold off and developed for housing.