my sunburn chances.? i am planning a cruise for September and i always burn so easily (i am a red head to the core). i am scared for i could seriously get sunburned or worse (poison) so easily under that tropical sun. a friend of mine said that i should get my skin used to the sun by tanning ahead of time in the bed and outside throughout the summer. will this in fact help at all or not? i understand that its bad either way BUT if im not a little used to the sun then it will BE much worse to get it all at once. either way i plan to use 30spf at all times to prevent sun although i am a red head, NOTHING works completely for me. i dont want to be miserable on our trip and want to still enjoy fun in the sun activities, what do you suggest?