In consideration of the premium charged it is hereby understood and agreed that the Insurer shall not be liable under the policy to which this endorsement is attached for loss or damage occurring while the automobile is used in or upon the water or while it is being launched into or landed therefrom.
If more than one automobile is insured under this policy, this endorsement shall apply only to the automobile(s) indicated in the Certificate of Automobile Insurance to which this endorsement is attached.