Surface Tension

The water becomes cohesive and resilient, making it impossible to drink but possible to cross on foot.

You greatly increase the surface tension of water within the affected area. This change has different effects, depending on the size and shape of the affected water. Bodies of water become cohesive and resilient, allowing creatures to walk on the water at half speed (as the water surface bends under their weight). However, if a creature is already running when it reaches the water's surface, it can continue running at the same speed, much as some tiny insects can run across the surface of normal water.

A swimmer can move from the spell's area underwater, but the water's surface proves difficult to breach. A creature attempting to break through the water's surface must make a Strength check (DC 5 + caster level); a creature without a swim speed takes a –5 penalty on this check.

You may affect smaller amounts of water with surface tension, creating balloon–like containers that can be burst with the same Strength check. You can carry gallons of water without a water skin, or bounce them like a ball. A creature could even wield a water bubble as an improvised sap. Drinking the water, on the other hand, becomes virtually impossible.