What are "VFR Waypoints" used for?

VFR Waypoints, or Visual Flight Rules Waypoints, are specifically designed to aid pilots flying under Visual Flight Rules. These waypoints serve as landmarks that help with navigation and situational awareness while flying visually. They are typically identified on aeronautical charts and are utilized to facilitate easier routing, especially in areas with high traffic or complex airspace layouts. This allows pilots to maintain visual references and improves overall flight safety.

In contrast, the other options focus on different aspects of aviation that do not pertain directly to the purpose of VFR waypoints. For example, assisting in cloud observation relates to IFR (Instrument Flight Rules) procedures rather than VFR navigation. Denoting controlled airspace boundaries is also a separate matter that involves defined airspace structure, while indicating emergency landing spots is more about safety protocols rather than routine navigation. Thus, the primary function of VFR waypoints lies in navigation under Visual Flight Rules.