Bust the coconut out the shell. Drink the water, it’s good for you. The small pieces aren’t going to be easy to hold so try your best to keep it together taking it out of the shell.
Strain and separate the pulp. Use your hands, squeeze out as much moisture as your can. You should only remain with a small amount of pulp in the middle of your hand, and 1 1/4 cup of coconut milk.