We were in Colima last weekend and stopped at two archaeological sites and a Pueblo Magico. The first photos are from El Chanal, then the church in Comala, then La Campana.
El Chanal was reasonably interesting, but La Campana is definitely worth a stop. The best part was its shaft tomb that you can walk down to. Shaft tombs are common in western Mexico, but this is the first place we've been allowed to see one.