Thanks for your comments! I've never flown into Manzanillo itself, only driven down from Puerto Vallarta. There are several flights per day on multiple airlines. You would still be several hours drive away from Manzanillo, however.

There are many, many hotels in Barre de Navidad, and from the looks of it, there is probably a pretty good range of prices, too. I can't remember exactly how much we paid but it was pretty nominal – maybe $40/night?

Hope this helps!