What is the purpose of keeping a lookout while under way?

Keeping a lookout while underway is essential for ensuring the safety of everyone on the water. By being vigilant and aware of navigational hazards, such as shallow waters, rocks, buoys, and other potential dangers, boat operators can take appropriate actions to avoid collisions and accidents. Additionally, being alert to the presence of other vessels helps in maintaining safe distances, understanding their intentions, and adhering to navigation rules, which all contribute to a safer boating experience.

The other choices do not pertain directly to the critical importance of situational awareness while operating a boat. Practicing steering techniques, monitoring music volume, or checking the fuel gauge are important aspects of boating, but they do not address the foundational need for constant awareness of one's surroundings, which is vital in preventing accidents on the water.