What is a waypoint?

A waypoint is defined as a specific location determined by coordinates, which can include latitude and longitude or other relevant positional data. This definition is crucial in navigation as waypoints serve as reference points along a route, allowing navigators to monitor their position and plan their movements accurately.

Waypoints are used extensively in various forms of navigation, including maritime and aerial navigation, to mark significant points such as intersections, landmarks, or destinations. By inputting waypoints into navigation systems, navigators can create routes and ensure that they are following the predetermined path, making this concept fundamental to effective navigation.

The other options represent different navigational concepts that do not specifically align with the definition of a waypoint. For example, a continuous path for travel implies a route rather than a specific point. A type of navigational aid, while useful in guiding a vessel, does not directly equate to the concept of a waypoint. Likewise, a chart showing ocean currents provides information about water movement but isn't a location defined by coordinates. Thus, option B accurately captures the essence of what a waypoint is in navigation.