After a double bogey on the 6th hole, was a little down because I was having a great round. Was back to even when I approached the 7th green. This par 3 is down hill with water front and right of the green. It has a mound and slopes towards the water. The flag was on the bottom right of the green, close to the water. I took out a 6 iron which would be my typical club to this green but second guess it after feeling a little breeze blowing toward us; a little left to right. Went back to my bag and took the 7 iron. The aim was slightly left and the ball took off to what looked like over the green. It hit the top of the mound and after a slight delay rolled back towards the flag. Then we heard a bang as the ball hit the flag stick and the ball disappeared. Couldn't believe it, great shot.