Clash at Demonhead/Route 41

Description
Assuming you arrive fromthe left exit, you will be greeted by two birds flying overhead. Carefully jump over the gap to avoid falling into the cavern below. More birds will appear in the sky as you approach the water in the middle of the route. Jump in the water and swim to the right. As you swim, you will notice a few small ledges which slowly sink if you jump on them. You can use these ledges to help shoot any birds that appear, but it's not necessary. Continue to swim over to the right side, and hop out of the water to reach the right exit.