Often, what is termed sea fog is actually coastal fog, it takes uplift approaching the coast to form.
This morning was a classic example. The was no fog for a few miles out to sea, but with a bit of uplift
Wind a F2 SSE, picture looking SSW from Newlyn Green to Penlee point.
One from the archives, from Penlee point, looking back towards Penzance
It turned into a very pleasant afternoon, well away from the inland showers
Graham
Penzance