Mix coconut milk and coconut water together in a container then pour into a 16 cube ice cube tray. Freeze over night.
The next day prepare margarita or rock glasses with salt rim. Run lime wedge over rim of glasses then twist rim over salt on plate.
Next place all cocktail ingredients and ice cubes into blender and blend till smooth.
Divide into the two glasses making sure that the liquid does not touch the salt rim.
Drink and enjoy.