We strongly advise against crossing by land into Burundi, as the situation in northern Burundi is extremely volatile. The main crossing point is between Butare (Rwanda) and Kayanza (Burundi). If for some crazy reason you want to do this, it's safer and quicker to take a minibus operated by Yahoo Car, in Kigali, which travels to Bujumbura (8.00, departure, six hours) daily, bur bear in mind people are regularly killed on this road.
The road between Cyangugu and Bujumbura that goes via Bugarama (Rwanda), Congo (Zaïre) and Luhwa (Burundi) is very dangerous and should be avoided.
At the time of research, travelling overland to Congo (Zaïre) was extremely dangerous. If the situation improves, the two main crossings will again be between Gisenyi (Rwanda) and Goma in Congo (Zaïre); and also Cyangugu (Rwanda) and Bukavu in Congo (Zaïre).
To get to Tanzania from Kigali, take a shared taxi or minibus to Kibungo (2.00, 1½ hours), and then a minibus (1.00, one hour) to the border town of Rusumo (there's cheap accommodation on the Tanzanian side). Once across the border, jump on any form of public transport - often a pick-up - to Ngara. From Ngara, catch a bus (10.00, 12 hours) to Mwanza. The road to Mwanza is mostly good but has some rough sections. If you wish to cross to Uganda the main border crossing-point is located between Kigali and Kabale, via Gatuna (Rwanda) and Katuna (Uganda). Those travelling direct between Kigali and Kampala can travel with the bus services that both depart at from the Okapi Hotel.
Between Kigali and Kabale there are lots of minibuses, but a change of vehicle at the border is involved. There are regular minibuses from Kigali to Gatuna (3.00, 1½ hours). Across the border in Katuna there are minibuses (0.50) and special hire taxis (4.00 for the car) to Kabale.
There's a second crossing between Ruhengeri (Rwanda) and Kisoro (Uganda), via Cyanika. From Ruhengeri to Kisoro via Cyanika is considered safe, but check the situation carefully in Kampala or Kisoro. Infrequent minibuses link either side of the border with Ruhengeri (1.00, 25km/16mi) and Kisoro (0.60, 12km/7.5mi).
