I will drive but I may walk a bit.
Am going to observe what I can see; maybe invest in a kiddies sledge?
I made a sort of pulk out of one. Very easy, drill some holes around the edge and thread through some rope, (I used blue nylon stuff as its cheap and I already had a long length)
Then I got some plastic tube from the builders merchant, only a few quid fo about 10/12 feet, and they even cut it in half for me.
Then thread the two ends of the rope through the tubes,, tie a loop, attach a couple of carbinas to the loops and clip those to some sort of strong belt. I have a waist belt from an old rucksack well past its best. Cross the poles then clip in. The poles stop the sled running into the back of your legs, particularly on downhill stretches.
A cargo net is useful for keeping gear in place, or else several bungies criss crossed over the load.
I'll try and remember to do a photo of mine tomorrow or in a day or two, if I get time.