As Calm Sailing this spell is restricted to priests of Nesirie. It allows a priest to deprive any number of adjacent coastal areas of wind and waves making it impossible for non-magical non-oared vessels to sail in,out or through the affected areas. On the other hand oared vessels add 1 to their rowing rates when inside the affected areas.
This spell was first used by the ETN as a retaliation to Mieres for the violent distruction of their temple holdings.