Look for a cross on the beach with blowing wind.

The cross puzzle needs to be solved. You need to light the candles, and for that you need to stop the wind.

Hidden somewhere is a book with a spell, though I can't remember for the life of me where. One of the caves maybe

Once you stop the wind, light the candles and talk to the woman, she will send you for her ring. Also in a cave/trapsdoor thing