Without curling iron: (Scroll down for with curling iron)
Usually I just apply mouse to damp hair, then braid it into four-six braids. When it’s dry undo the braids and there you go! 
But there’s another way i found, here’s the link. It includes pictures too. http://www.howdoesshe.com/natural-looking-beach-curls-in-under-20-minutes
