Here's a thread on the subject of hiking trailers:
https://www.caminodesantiago.me/com...g-pack-loads-over-distance.48162/#post-520319
and another one on the same subject
https://www.caminodesantiago.me/com...ed-with-a-hip-belt-trailer.48595/#post-631956
You may be interested in the design by El Condor, he modified a child's pram. And he left in April for the Via de La pLata, so he is probably back by now to tell us how it all worked out...
Reply: Am considering all the great replies that cover what i'm after - very steep ups and downs, rocky paths were unexpected tho no way xtreme i suspect; interestingly designed carts as well.
Perhaps some repair work could be done on the paths by local tourism considering the number of visitors.
I have replied before this but must have submitted incorrectly. I imagine what it is to travel very light with backpack even so it would still cause some problems.
One backpack is smaller and sits and is supported on waist and hip level which might be an idea tho think all backpacks are supported by the hips plus shoulder bits. ..regards