Great trip. Terrific views of Vancouver Island and Stanley Park as you take off.
Saved nearly 3 hrs with using only the ferry for the return journey.
Would have been better if Viator offered an inclusive ticket for Buchart Gardens. However in the end it was not a problem to obtain an inclusive coach/admission ticket from Victoria tourist centre by the harbour.

In principle it was a good idea but the hop on hop off did not work very well. Their were a lot of frustrated passengers having to wait over an hour for a trolley with space for them.
Being presumably old converted trolley's the ride was rather firm and bumpy.
Think would have preffered one of the other types of tour buses.