Ключевые слова: alert, army, beach, blue, border, cloud, coast, coastguard, coastline, conventional, defend, firetower, force, guard, help, holiday, horizon, life, lifeguard, military, monitor, monitoring, ocean, orange, outdoors, people, protect, radar, safe, safeguard, safety, sand, save, scan, sea, secure, security, sentinel, silhouette, sky, stairs, sun, sunny, sunset, tourism, tourist, tower, war, warfare, watch, watchman, watchtower, white,