Coconut water

Clear liquid inside coconuts

Coconut water (also coconut juice) is the clear liquid inside young coconuts (fruits of the coconut palm). In early development, it serves as a suspension for the endosperm of the coconut during the nuclear phase of development. As development continues, the endosperm matures into its cellular phase and deposits into the rind of the coconut pulp.

From Wikipedia, under CC BY-SA. More on occurri.