The Rules of Golf change from time to time, typically over a four-yearly cycle, and the reason this is a valid question is that this is one of the elements that changed quite significantly with the major Rules revisions that were introduced in 2019.
First and foremost, the terminology changed at that time such that the ‘water hazards’ of old became the ‘penalty areas’ of today. The video below offers a simple explanation of how to proceed if you find yourself in one!
