But that is not what boats were made for

As Solva is on the coast, as it obviously is, the coastal path comes right through and if you were coming from the Newgale direction you would have passed a series of lime kilns - not an uncommon sight on the coast. In days of yore there were no B&Qs or Wyevale Garden Centres (other suppliers of garden and building products are available of course but those two abovementioned are welcome to contact me with a view to making a contribution to my vast but dwindling funds!). Lime was extensively used as a mortar for building or for coating exterior walls, it was also used on the land to balance acidity in soils resulting in bigger and healthier crops. There was a large movement of limestone by sea for these purposes.