This cantrip has two forms. First, dowsing can detect the nearest potable water on the surface if it lies within Long range (400 feet + 40 feet per caster level). Alternatively, the caster can search for subterranean water within Close range (25 feet + 5 feet [er 2 caster levels). The caster holds the fork of the stick in his two hands. The stick twists to point at the nearest water within range (assuming there is any water). The cantrip lasts as long as the caster concentrates on maintaining the spell.