Tucan's adventure tours are brilliant and well-run. They combine well-researched and run activities that offer both some of the advantages of group travel (convenience, low cost and companions) with a good mix of independence. The tour leaders are quite good and helpful. Tucan's overland tours are also good, but in my opinion, they have way too many people on them. The disadvantages of these are many, the principal being that the trips become as much (if not more about) the travelers than the destination. This aspect takes away from the experience of getting to know places and its people.