Gliding Step (Martial Arts Maneuver)
From D&D Wiki
To slow down is to invite death.
Level: Active 3
Type: Action (Movement)
Description: You can run across water. To find out how much open water you can traverse, make a Concentration check to continue running on the water. You can cross a length of water in feet equal to ten times your Concentration check result. If for any reason you stop running while on top of water, you immediately fall in. This maneuver can only be initiated on solid ground, and you take a -10 penalty on the check if the ground on which you start off is uneven or very muddy. Activating this discipline is done by making a 20 ft. running start.