Move Water
The caster must announce which of the two options are being cast: The spell lowers the depth and water level of lakes, rivers, wells, and other bodies of water to 1/2 their normal levels. Used this way, the spell lasts for 10 turns. Alternately, this spell creates a gap through water, but only to a depth of 10 feet. Used this way, the spell lasts for 6 turns.