Hi Emmy, are you touring, if so I don't think Littlesea take tourers, it is their other site about 500 yds up the road called Seaview.
We went in 2006 (Seaview) and it was one of the best holidays we have had (The weather was excellent and the football was on aswell!!).
The site was clean and the facilities were good, we went out of the main holidays so it wasn't too packed. The sight does slope but is tiered so the pitches are level. We're going again this year in June so I hope that is enough recomendation for you. We have a 4 year old daughter and there is plenty to keep her occupied.
If you put the post code of the site (DT3 6DZ) into google earth it does show a good aerial picture and the distance from the beach which is walkable.
Any more questions please ask.
Pete