Peter,
     If your of mediteranean descent   as I thought you stated previously and 
have an olive complexion you have less chance of burning in the sun. I live 
in the hot Florida sun up to 8 hours a day in the summer and never burnt 
neither has my liitle girl who is also olive comlplexion. Taking EFA's is 
definitely 
helpful in this climate though. I alternate between organic 
oliveoil,primrose,coconut,krill,flax occasionally and always recieve comments 
on my skin.