Drain your coconut by using a screwdriver and mallet to bore a hole into one the coconut’s eyes, then turning the coconut upside down over a glass.
Use a hammer or mallet to strike all along the equator of the coconut, until the coconut breaks apart or forms a crack large enough to prise apart.
Heat your coconut in the oven or microwave before you strike it with a hammer to make it easier to split apart.
Slice the white casing off of a young coconut, then use the back of a sturdy knife to strike all around the equator until the young coconut splits apart.