What action is needed to earn an award for completing a sea cruise?

Earning an award for completing a sea cruise typically requires a demonstration of active participation and involvement during the voyage. Casting off lines and being underway on a vessel showcases the necessary level of engagement and responsibility expected of participants. This action signifies that the individual has not only adhered to safety protocols but also contributed to the successful operation of the vessel.

In contrast, simply assisting on deck duties or being present when the vessel docks may not reflect substantial involvement in the sea cruise experience. While these tasks are supportive, they might not encompass the critical aspects of navigating or operating the vessel. Receiving a certificate upon arrival usually serves as recognition of completion, but does not indicate the necessary hands-on experience that directly contributes to earning an award. Thus, the most fitting action that demonstrates the requisite level of participation is casting off lines and being underway.