We stayed at Hotel Casa del Consulado and they booked us a last minute (like 30 minutes before!) tour with Cafe Las Flores to Mombacho cloud forest. I think this is the go to tour company for a lot of hotels in Granada. It seemed like some of the other guests were picked up directly at their hotel, but we were booked last minute so we took a taxi right to the park. The name is kind of confusing because they own cafes, but also offer tours. There is a cafe halfway up volcano and you can sample free coffee, but they lost power the night before so it wasn't ready, but we were able to get a smoothie which was good. There is also one in Granada in the town center. Guides were very nice and made the process seamless, otherwise it can be very confusing (i reviewed the actual cloud forest experience and trail on "Mombacho Volcano").