The bus provider did a good job in the end but I was less than satisfied with Viator. Viator accepted my reservation and took the payment and then later sent an sms to say the tour was not available and to call to reschedule. When I called the number they had no idea of my reservation and it took several calls to reschedule. The rescheduled time was not convenient but as I'd paid for the tour, I needed to take it. Viator should give the correct information in the first place. I will go directly to the bus provider in future and not through Viator.