To be honest, Accutane will not hurt you as much in the sun like antibiotics or topicals can. Accutane dries out your bodies production of oil and so does the sun so you are basically just getting a double dose of it. In some facets, getting in the sun can make your Accutane experience shorter, but this could also be very dangerous. You can find plenty of suncreens to work. Just look for something 15 and beyond that is sweatproof, waterproof, oil free, and non comedogenic. To be honest almost all sunscreens are like this. I'd say look for something like Banana Boat Sport. Good Luck and have a fun trip.