The bay provides good natural shelter and many of the boats spend the evening here. (Dive-The-World.com)
The efficient causal agents are no longer planners and builders of houses alone, but also include explorers and discoverers of natural shelters. (religion-online.org)
«Whilst we thought that we might discover engravings, such as in the Vallée des Merveilles to the south - east, we never expected to find prehistoric paintings in this exposed area that affords so few natural shelters. (sciencedaily.com)