I never took malaria meds in Peru. I don’t know if that is entirely necessary. But, don’t go by me. If you are nervous about it by all means take them. No point in being nervous.

Three months in Cusco is a long time. I was only there about three days. I could have used a few more days, but 90 seems a tad long. Are you going to be taking Spanish lessons or something? I’d spend the time exploring the Peruvian countryside.