Hi guys! Sorry for all of the last minute questions LOL I'm getting anxious. Anyways...just wanted to ask those of you who have experienced the DR sun. I'd like to come home with a nice tan, not with a horrible sunburn like I got in Mexico. (that was my fault though) Anyways, I've packed spf 15 sport and spf 30 sport. What I am wondering is if the 15 will be enough or would I be better off using the 30 all the time?