As my guide in Africa frequently said, bring much sunny cream. It’s going to protect against both sunburns and cancer. (Get the stuff with UVB and UVA protection.)
If anyone is wondering, yes, I’ve been trawling a few random naturopath sites. I find it extremely disheartening that these evil little quacks are so eager to increase the rate of cancer by discouraging the use of sun lotion. I’m sure a few wouldn’t mind having more ‘patients’ to abuse financially, but I think the majority of them just hate science so much that they’re willing to do anything so long as it builds up their anti-science street cred among fellow quacks.