Using an exact runway size of 7 tiles; use extremely precise, controlled Spring Ball bounces to cross the ocean. 7 tiles of runspeed can freely be achieved by requipping SpeedBooster after reaching the max normal run speed. Mockball down the submerged ramp and begin Spring Ball bouncing either above the water, or under water using the platforms. The final Spring Ball bounce must be on the left edge of the rightmost underwater platform. While the bounce is occuring, setup a mid-air Spring Ball Jump to escape the water and reach the door.