Group pricing works differently from a solo or couple's booking: per-person cost usually drops as group size grows, since fixed costs like a vehicle, guide or houseboat get split across more people. That makes group tours a natural fit for college trips, corporate offsites, and extended-family reunions where the destination matters less than everyone being able to travel together at a reasonable price.
The trade-off is coordination. A fixed-departure group tour has set dates you join, usually cheaper; a private group booking lets you set your own dates and itinerary, usually at a premium. Below is a live, filtered view of tour-category packages well-suited to group travel - always confirm per-person pricing at your specific group size directly with the operator, since it isn't always shown upfront.