Waves make navigation difficult and dangerous near shallow water.

In fact, a number of large water falls and cliffs made navigation and porting impossible.

He would like some moorings removed on pure safety grounds and to make navigation by large numbers of boats easier.

"You might call it cooperation, but when we get over Jerusalem, the snow and wind will make navigation a little tricky."

Numerous crescent-type streets are renamed halfway along them, making navigation for people unfamiliar with the area difficult at best.

The water's darkness lost the boats immediately, although the looming islands made navigation easy for anyone who knew these waters.

In addition, the waters in this area are relatively low in the spring, making navigation somewhat difficult.

"This was the first clock with an escarpment stable enough to work at sea, to make global navigation possible and thus world trade," he added.

The storm, of unknown force, made navigation very difficult.

Recently, the system has been undergoing a refurbishment with plans to make navigation a reality again.