Crystal Tap

Crystal Taps are colorful octahedral switches in Super Mario 64 that will either lower or raise the water level in Wet-Dry World. If Mario touches one, the water will drain or rise to the level of the Crystal Tap. There are seven in all and placed in strategic locations across Wet-Dry World. There are five in the main area, and two in the underwater town.

If you activate a tap in the downtown, there will be no way to get back to the top. You can swim and reach the other side but the cage will be far too tall to get over. To raise the water level to it's highest point, jump inside the painting as high I as you can.