Walking at noon, sun burn! Or if to prevent, sun screen OR AN UMBRELLA! Yes, carry an umbrella. Have you heard of this? Maybe not, but experientially, walking at noon in soutehern Taiwan, you've better carried an umbrella. OR you get ugly tanned. Sun screen might help and get you a nicer tan. But that'd help only a tiny bit. If you want a nice tan, you might want to combine the both–sun screen and an umbrella.