Complex sentence: The main site is in a mainly residential area, and it is immediately beside Fenner's, the Cambridge University Cricket ground, and across the road from Parkside Pools and Kelsey Kerridge Gym, which are the main public sports facilities in the city.
Split into simpler sentences: The main site is surrounded by private houses and it overlooks Fenner's, the Cambridge University Cricket ground. Nearby are Parkside Pools and Kelsey Kerridge Gym, which are the main public sports facilities in the city.