Holding: For centuries rivers, lakes, seas, and oceans provided the principal means of
transportation. However, the development of efficient means of overland transportation
by railroad and more recently by automobile and our system of roads and highways,
means of ingress and egress by water have become less and less desirable and necessary.
In applying common law principles to present day problems we must take into account
changing conditions to the extend that today access to a parcel of land by boat over water,
although reasonable and practicable a century ago, is not so today. Practicable necessity
entitles P to a means of ingress and egress across the land of D.