I’ve posted a few pictures of the walls that bound Jeju’s fields before and here are two more. I took them on the road between Hallim to Jeoji this afternoon but I could have taken them just about anywhere – they’re ubiquitous on the island. It makes sense, as the rocks were cleared from the fields in the first place.
Like this one, many don’t look as carefully constructed as a dry-stone wall in the UK, but that may just be the nature of the rocks. They probably don’t need to be as robust as a British dry-stone wall: there are no sheep, cows are typically kept in barns, and horses are often tethered.