There are a few sites dotted around Croyde Bay in North Devon just south of Woolacombe and you can also park for the day on the front at Woolacombe or along Atlantic View (both chargeable in season). We stayed here back end of last season for a week and also spent six or seven weeks at Twitchen house site above Woolacombe but that one is a long hike down to the beach.
Explore the best surfing spots on the beautiful Devon Coast at Ruda Holiday Park, with access to golden Croyde Bay Beach. Rated 4.25/5 from over 2,300 people.
www.parkdeanresorts.co.uk
In season there are a few smaller sites around Croyde bay quite close to the water.
If your reasonably mobile (I think ive mentioned this before) The Countryside mobility scheme hires out Trampers (all terrain mobility scooters) from Woolacombe and loads of other places. They are brilliant. Think the Landrover of mobility scooters. you can go off down the beach or up in the dunes and hills on those.
Countryside Mobility provides safe, enjoyable access to some of the most scenic locations in the South West (and beyond), through an off road mobility scooter
countrysidemobility.org
Fantastic area all around there.