Of all of the features in the new iPhone 7 (which I am now holding in my hand), the one I am most happy and excited about is the new ability to get it wet. And not just splash-proof wet either. I'm talking submerge-in-the-ocean wet. There are still some ways to get liquid damage on the phone, but for most people, the IP67 rating of the iPhone 7 means the accidental drop into a standard pool or toilet won't ruin your day.
The IP67 rating isn't supposed to cover salt water, but at least one person has already documented the iPhone 7 in the ocean and it seems to be fine.