for those looking for a "base"..
I goggled and got a Mayo Clinic Health Page.........having a "lamp" tan gives your skin the "sun protection" (base) is about
sp4....so pre-tanning gives you a very small advantage in compared to those that dont "pre-tan"...it only takes a day or two to darken up from lilly white..........so why expose yourself to them?
your a tourist....locals are expert at pickin 'em out....lol
The Lord gave you ONLY ONE set of skin, keep it pretty...save your health
