Once we have confirmed your reservation, you can count on your trip, with the following conditions: self-guided trips have a two person minimum, so solo travelers must join a date when others are doing the same tour. Guided trips have a four-person minimum. If the four-person minimum is not met, the options are to pay a premium to switch to a privately-guided tour or switch to self-guided format of your trip, if available. Please see our Terms & Conditions page for full details.