I will be going to Peru in May and doing the Salkantay and Asungate treks while I am there. I intend to do it solo without a guide or porter. I typically like to just maps, but seeing that my spanish is not as good as I would like it to be I finally purchased a GPS, Garmin Dakota 20.
Would anybody be able to tell me where I can get GPS maps for these treks, preferably for free or cheaper than on the Garmin website?

