My son-in-law is leaving Boxing Day (Dec. 26) for Mexico. He is taking Greyhound buses from Canada through the US (a marathon no-hotel two and a half day bus ride!) arriving in Fort Stockton. From there he plans to take a bus to Presidio. His planned route includes the Copper Canyon, Los Mochis, Mazatlan, Oaxaca, Chiapas - all the way to Cancun. From there he flies home. He will have over three weeks in Mexico.

Any tips or suggestions? I looked at TheTravelzine archives so he knows about that. But anything else? He is travelling alone and on a strict budget with a small backpack.

Frances Toronto, Canada