I've been in and out of this cave all my life (not so much the last few decades!) and I've only just become aware that the archaeological dig (carried out during my childhood) showed that it had been inhabited by a 'special' member of the indigenous peoples. He was responsible for 'dealing with' those who transgressed tribal lore, and was to be feared!
What a story. You might not have been in and out of it so much as a child had you known the legend. I like how you used the opening to frame the view of the sea.
Ian