In-field experiments with two autonomous kayaks verifying the COLREGS ``Head-on'' Rule 14 behavior. Vehicle 1 (moving from left to right) and 2 are put on a head-on collision course through a series of waypoints. Vehicle 1 is utilizing a waypoint behavior and a ``rule-14'' behavior. Vehicle 2 is only using a waypoint behavior and does not make any attempt at collision avoidance with vehicle 1. The two vehicles reach a head-on collision course. Initially, only the waypoint behavior is active in vehicle 1 because vehicle 2 is still outside the activation range. When vehicle 1 is within the activation range and within the activation angle specified to the rule-14 behavior, it makes a starboard maneuver to avoid collision. After vehicle 1 has moved outside the activation angle, the rule-14 behavior becomes inactive, and the influence of the waypoint behavior begins to dominate again.