It's the moment the world has been waiting for and now it’s official. The palace is confirming that Princess Kate will make her first public appearance since her announcement in march that she is battling cancer. It will happen tomorrow during Britain’s Trooping of the Colour - celebrating King Charles' official birthday. And if it's not hot where you are, chances are it soon will be. At least 135 million people are expected to face temperatures approaching 100 in the next few days. Keeping safe - and keeping hydrated is crucial. Jim Moret reports on a couple who learned that the hard way when they went hiking. Plus, you'd like to think that if you were in harm's way - someone would come to your rescue. And in the case of a man who collapsed onto the subway tracks in New York, that someone was a tourist visiting the city. As Les Trent reports, he probably saved the man's life. And it can happen in an instant, one moment you're walking on the sand. The next, you find yourself sinking deep into quicksand. Here's what you need to know before heading to the beach this summer.   See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.