GAP ADVENTURES - JUST SAY NO!
We traveled to Tanzania with GAP Adventures in February 2007. We had nothing but problems with GAP...our starting hotel was changed 4 times before the tour even started, we arrived to most of the campsites at night to set up tents in the dark, our vans were the only ones to travel with all belongings on top of the roof "family style", I was told water rations would be provided to each person, which was untrue as we had to purchase our own water for daily use, even as a beverage for "included meals", etc. etc. The tour was completely disorganized and I found out later that other companies offered tours at the same price... only they had better service!
Apparently GAP is a relatively new tour company in Africa. I have heard that GAP is excellent in South America, which is the continent where they started out. That may be true, but as far as Africa goes, DON'T USE GAP ADVENTURES!