Inspired by the other reviewers I chose El Rosario to tick off this site. Google Maps does not know it, but once you are within the region it’s signposted, there are not too many roads and people are happy to point you into the right direction. I started my trip from Morelia at around 09:15, arriving on site just before 12. The roads are not great and it felt like there was a speed bump every 100 meters, but the site itself provided such a great experience that I would do it again. Do to my rather late arrival it was already quite warm and the butterflies were very active. Thousands of butterflies flew around me and made me feel like I was in a cheesy romantic movie. The area where the butterflies actually are is rather small, so the time you will spend on site is almost nothing compared to the time you need to go there and back. But still an unforgettable experience and among my favorite sites in Mexico so far.