What is indicated by showing two cones with their apexes together?

The indication of two cones with their apexes together is a visual signal used in maritime navigation. This specific configuration represents a vessel that is engaged in fishing, particularly one that is trawling. Trawling involves dragging a fishing net behind the boat, which necessitates the use of this marking to alert other vessels in the area of the fishing activity.

This signaling is important for safety and navigational purposes, as it helps to prevent collisions and ensures that other vessels are aware of the fishing operation that may restrict their movement. Understanding these signals is crucial for mariners to maintain safety and the effective use of navigable waters.

While vessels at anchor or engaged in sailing would have different visual signals to convey their statuses, and a vessel engaged in fishing would be indicated differently, knowing that trawling is specifically identified by this sign helps reinforce the understanding of various maritime signaling conventions.