sunworshipper
I was in Sharm in March last year, v.good, and Morocco in early Nov. last year, I'm a normal tanner you might say, go red first then brown. I used the one day long SP20 brand for Sharm and also used the Piz Buin one day long in Morocco, I went in and out of pools and the sea and the only problem I had was with the SP20 where I didn't quite cover my right shin one day and my left shoulder the following day due to it being a clear oil type substance, what can I say, slap it on early as per the instructions and forget about it, they are both fantastic products, going to Hurghada 4 weeks on friday, hot hot hot!! I'm taking the Piz Buin one day long spf30, 20 and 15, just remember the number is supposed to tell you how long you can stay in the sun compared to how long it would take you to burn if you wearing no lotion at all, not explained it well but, burn in 30 minutes SPF20 should mean you would then burn in 10 hours!! Best to be over cautious though.
Enjoy your trip!!!!!