Time for a skill challenge. Your initial objective is: A) get off the ships before it leaves the dock(appropriate skills DC 16), individual success gets you off the ship or B) work as a group to somehow stop the ship from being swept away with the tide(appropriate skills DC 18), 4 successes needed before 3 failures, C) Stay on the ship and try to get it under control and sail it back to the dock(appropriate skills DC 16), 8 successes needed before 3 failures.
Everyone makes 1 assist or skill check each round.