What action should a boat operator take when encountering dense fog?

When encountering dense fog, the best course of action for a boat operator is to reduce speed and use sound signals. Reducing speed is crucial because visibility is significantly compromised in foggy conditions, and operating at a slower speed allows the operator more time to react to potential obstacles or other vessels. Speeding through fog can lead to collisions, as operators may not see dangers until it’s too late.

Using sound signals, such as the horn or whistle, is also important in fog because it helps alert other boats to your presence. The use of sound signals is a standard safety practice under the Navigation Rules and is particularly critical in situations where visibility is limited. By both slowing down and using sound signals, the operator is taking proactive measures to ensure safety for themselves and others on the water.

Stopping the boat completely could be dangerous as it may leave you vulnerable to being struck by other vessels, particularly if they do not see you. Relying solely on GPS is also not advisable; while GPS is a helpful navigational tool, it does not provide situational awareness of surrounding dangers as sound signals and a proper lookout would. Therefore, the approach of reducing speed and using sound signals effectively balances safety and navigational effectiveness in foggy conditions.