One of the most beautiful scenic place on the island of Phuket is the Karon View Point, this area alone attracts thousands of Phuket visitors annually, when you arrive up to the view point you can see three of Phuket's most beautiful beaches; Kata Noi, Kata Beach and Karon Beach. So don't forget get to bring your camera and video, it really is a sight to be seen.
I stop up here all the time when I am heading to the southern end of the island, and have always come back with some awesome pictures and video, if you get a chance try to stop there at different times of the day; sunrise or sunset you will really get great pictures.
During the low season it's really not that crowded, but once high season kicks off it can get real busy up here with all the tourist groups stopping to get their fair share of pictures.
This is one of the reasons I love Phuket so much, just take a look at this view point and you will see why.