The Legend of Zelda The Wind Waker 100% #29 Shark Island (No Commentary)

This island is in the shape of a shark, hence the name. The puzzle you need to solve here has nothing of the ferocity of the predator that lent its name to the isle. Just stand on top of the switch at the far (fin) end of the island, put on your Iron Boots to depress the switch, then take them off and run to the main portion of the isle. Run to the right and hit the switch with your Hammer, then turn around and head towards the crystal switch. Hit it with your Boomerang and climb up the ledge to the right to step on the final switch. This will turn off the fire and let you enter the cave.
Get ready for absolute battle mayhem. You'll face everything from Wizzrobes to black and red knights -- all at once. Fend them off and don't give up. At the end awaits a treasure chest with a Silver Rupee (200).