It is illegal to consume alcohol throughout Westhaven Marina, unless you are within a licensed premises.
You also can't carry opened alcohol bottles, or consume alcohol, in Westhaven carparks, roads, green spaces, beaches, or while driving, although you can transport sealed bottles through the alcohol ban area, provided you do so promptly.
For boat owners and crew, this means it's okay to transport unopened bottles from your car to your boat, for example, but take care not to consume alcohol, or to carry open bottles, when walking from your boat to a yacht club.