bluestone national park accessibility?

Has anyone experienced bluestone national park what’s the facilities like I have a disabled son of 30yrs and would like to spend time with my extended family of 10 there apparently they only have a disabled accommodation for a family of 4 but I’ve spoken to bluestone and they’ve assured me the some larger lodges have wet rooms and bedrooms on the ground floor they couldn’t answer my questions about the suitability for the lodges for a wheelchair user and the toilet please could somebody help me with the suitability of bluestone I’ve just come back from longleat Center Parcs and the 5 bedroom adapted accommodation was excellent but I would appreciate something nearby I live in Bridgend