May 2015 Adobe added to PhotoShop and Lightroom the Dehaze slider. The Dehaze tool helps you easily reduce or remove haze, common in many outdoor photos like landscapes.
Here is the above photo with the Dehaze at 0
Same photo settings but now Dehaze at +73
Now if you were like me you had an editing workflow and when Adobe introduces a new tool you may not even be aware of it. Well I have been using it for about a year now. It works great.
Like all tools you need to try it and see if it works for a photo or not.
This tool in Lightroom is all the way at the bottom of the tools just about Camera Calibration in the Effects module.
Here is a photo without the Dehaze applied
Here it is at +36
I recommend trying out this tool on your photos. You will be glad you did.
PhotoShop CC Instructions
Here is how you access it in PhotoShop CC. Go to Filter>Camera Raw Filter in the menu.
Then when in the RAW Filter click on the ƒx tab. Then you will see the Dehaze slider on top.