Try this technique in your next camping if you are a boy scout or member of an Eco Camp. You can do it better than in the movie Castaway. You may set a prize for the winner.
Dr Abe V Rotor
Living with Nature School on Blog
Paaralang Bayan sa Himpapawid (People's School on Air) with Ms Melly C Tenorio
738 DZRB 8 to 9 evening class, Monday to Friday
Subic, Zambales 2008