4 of us are going to Cuba from New York at the end of January for 10 days; I've seen numerous mentions in the forum of staying at casa particulars, but nothing about how to actually book one. We are looking at Airbnb as well as you can book in advance and pay by credit card, but seems the casa particulars are cheaper and really the way to go. We're all experienced travelers and want to stay in Havana Viejo. One of our group is from the UK and apparently for his visa he needs to indicate a place where he'll be staying. Thanks for your help.