What should a seaplane on the water do when there is a risk of collision?

A seaplane on the water should keep clear of vessels and avoid impeding navigation, particularly when there is a risk of collision. This is important because the seaplane, being both a vessel and an aircraft, must adhere to the principles of safe navigation at all times. By maintaining a safe distance from other vessels, the seaplane can minimize the risk of collision and ensure that it does not obstruct the movements of other watercraft, which could lead to dangerous situations.

In navigating through busy waterways, it’s crucial for all vessels, including seaplanes, to operate in a manner that prioritizes safety and compliance with the COLREGs. Keeping clear also aligns with the rules that govern the conduct of vessels in proximity to each other, reinforcing the idea of predictability and responsibility on the water.

The other options would not be appropriate actions given the circumstances. Taking off immediately could lead to a collision during a critical phase of maneuvering on the water. Ignoring other vessels is contrary to the spirit of maritime safety, as all vessels must remain vigilant and considerate of their surroundings. Finally, proceeding at full speed could increase the risk of an accident, particularly in environments where collision avoidance is necessary.