I know there are a lot other similar techniques used by other people, but this is the technique that I use whenever I want to get Beach Wavy hair next morning. So this is an overnight technique. But this can also be achieved beautifully in 3 hours.
First thing to do is to make sure you have shampooed and conditioned your hair.
Then dry it, or leave it slightly damp.
And then braid your hair into pigtails. I really don't know how to do the normal braid as my braid come up inverted as you can see. xD You have to start at the top if you want the waves to start at the top of your hair.
And then secure the braids with elastics. In my case, I slept with my braids overnight.
Braids don't have to be too perfect or parted perfectly so don't make too much effort making it look good unless you want to wear it out as a hairstyle xD.
I don't have results picture immediately after taking off the braids, they're pretty wavy and really cute. These are my photos after 3 hours, my hair look like its naturally wavy xD
Don't forget to apply styling cream/clay/mousse if you like. :)
*Picture SPAM alert* X3