With summer vacation on the horizon for many, hitting the beach at some point is likely in the cards for most. But along with sunscreen and a towel, as PC Mike Wendland reports this week, you might want to consider three apps to ensure plenty of fun in the sun. Swim Guide finds the cleanest beaches for swimming, surfing, and more. It draws data from more than 100 beach monitoring sources for real-time updates on water quality and cleanliness. As well as beach amenities, and even where to park. Seach by beach name or geographic area. The app is free for iOS and Android. SunZapp gives you all the info…