Hi Janet,
This only refers to if there are low numbers of people booked on the tour. For example, if only 4 people had booked on, this doesn't give a group tour experience to we may combine it with another tour that has, for example, 10 people booked on.
We wouldn't combine two group sizes of 25 together, which is generally the case.
It's also only the case if we have more than one group in Vancouver on the day, which is unlikely for this tour.
I hope that helps and we'd love to see you on the trip with us 🙂
Thanks,
Vickie