Just because I've been there and done it doesn't mean that you can. You know your limitations, I don't, so if you go there it is at your own risk. By mentioning the place I'm not suggesting that you go there.
Hengistbury Head Nature Reserve and Mudeford Spit, Bournemouth, Dorset BH6 4EW
A land train often operates from near to the car park at the foot of Hengitsbury Head and the paths are of good quality both to Mudeford Spit and over the top of Hengitsbury Head itself. I've used the land train in the past but this time I took my own all-terrain mobility scooter and enjoyed exploring the paths, one muddy, the rest in very good order. Hengitsbury Head itself can only be accessed on mobility scooter from part way along the path to Mudeford Spit, or via a muddy path from the west, as there are steps at both the east and west ends, it's well worth going up to the top to enjoy the views to the Needles at the Isle of Wight, back towards Bournemouth and Poole's miles of beaches and inland to Christchurch harbour. There are signs around the place explaining the history and fauna of Hengitsbury Head, there's a visitor centre as well as cafe's and toilets at both ends. The cafe at Mudeford Spit suffered a major fire but in January 2020 the BCP Council approved a £1m rebuilding programme.
Hengistbury Head has been designated a Site of Special Scientific Interest.
There is a splendid view of Christchurch Priory looking from the top of Hengitsbury Head, part of which later this century will mark being 1,000 years old.