(1) Where several ports of discharge are specified by the policy, the ship may proceed to all or any of them, but, in the absence of any usage or sufficient cause to the contrary, she must proceed to them, or such of them as she goes to, in the order designated by the policy. If she does not, there is a deviation.
     (2) Where the policy is to "ports of discharge", within a given area, which are not named, the ship must, in the absence of any usage or sufficient cause to the contrary, proceed to them, or such of them as she goes to, in their geographical order. If she does not, there is a deviation.