Great pictures, we have been there but by rental boat from Arillas, dead easy to use and a great way of seeing the coast line, never got to the church though.
There is a nice walk down there from Afionas, we tried this last year but bumped into a snake on the way down the footpath, my wife hates snakes and I mean really really hates snakes, so it was back to the bar for a calming drink.