Hi Jules,
Absolutely!
At the moment there 24 travellers heading to Vietnam on this date. 16 of the group will be on the main tour only with 8 of you staying for the Cambodia add-on.
In terms of ages, the group is made up of people from their mid-40s through to their mid(ish)- 70s. As for the gender split. It is currently 50:50.
There are still a few places left so these numbers may change before you depart - feel free to ask me again closer to departure.
Kindest regards,
Julia