We passed the occasional navigational marker and two other cruise ships making for Aswan.

The reef is close to navigational marker 32.

"It needs navigational markers, buoys or posts," Captain Perez said.

A salvage operation is infinitely more desirable than deploying navigational markers.

It currently serves as a navigational marker.

The batteries were used to illuminate stationary towers, buoys and other navigational markers.

The Channel was a favoured passage for shipping, and the fort was built to both control it and act as a navigational marker.

The Coast Guard made it an official navigational marker in 1979.

The other four were heading northwest after using a different navigational marker.

A lighthouse or torch symbolised the boat's use as a navigational marker for an invasion force.