Viazul Bustickets can be order via this site.

• Habana –  Viñales costs around 12 USD.
• It is possible that you will have to try a few times before you can get the date that you want, but if you regularly try you can get a reservation
• The booking is very secure and you can trust their services
• The busses are also modern and have air conditioner, so prepare with some warmer clothes because it might be cold.