He gestures to the belfry, built a century ago to scan the sea for cargo ships.

The observation scope, used to scan the sea surface and sky, typically had a wide field of view and no magnification or low-power magnification.

You can also scan the seas for seals, dolphins, basking sharks and whales.

The under-sea search for flight recorders and wreckage continued yesterday using a robotic vehicle that scans the sea floor with sonar.

Perched at the top he scans the seas for the dark areas that indicate greater wind.