Back to the Bay
You’ve accomplished quite a lot, but there’s still more to do. After resetting to the Dawn of the First Day, play the Inverted Song of Time to slow down time as usual, then soar to Mountain Village. Slash the small snowballs near the Mountain Village owl statue to find arrows and bombs, then soar to the Great Bay Coast. When you arrive, swim east to the beach, and then enter the unmarked stone building near the Fisherman’s Hut to visit the Oceanside Spider House.