If someone sustains injuries onboard most types of watercrafts, be it a motor boat, sailboat, cruise ship, etc., similar to any other vehicular injuries, the Plaintiff must prove that his or her injuries resulted from someone's negligence or wrongdoing.
In other words, the Plaintiff’s Chosen Lawyer must show that:
1) The alleged Negligent Defendant owed a Duty of Reasonable Care to the Defendant;
2) The Defendant breached the duty of reasonable care by acting unreasonably or failed to act as a prudent reasonable person would have, under the circumstances;
3) The injuries to the Plaintiff were directly and proximately caused by the negligence or wrongdoing. In other words, the injuries were reasonably foreseeable at the time the alleged carelessness took place.
4) The Plaintiff sustained damages, i.e. injuries.