When is it permissible for a passenger to stand or walk on a moving vessel?

Passengers are generally permitted to stand or walk on a moving vessel as long as it is safe to do so and they are not in areas designated for crew only or where movement is restricted due to safety protocols. It's advisable to remain seated during rough weather or when the vessel is navigating through challenging conditions. Passengers should always follow the crew's instructions and be mindful of their surroundings to prevent accidents. Additionally, some vessels may have specific rules regarding movement that should be adhered to.