Tanzania is home to one of Africa's most magnificent game reserves, the Selous Game Reserve , as well as the endless plains of the Serengeti National Park , where one of the world's great natural spectacles, the annual migration of some two million wildebeest followed by their predators, can be observed. Numerous tour operators can organise tailor-made safaris, either by vehicle, on foot, on horseback or by balloon. Some areas, such as the Mahale Mountains National Park , are only accessible by plane or boat. In parks such as the Arusha National Park , it is possible to drive around without a guide, but those on foot must take and armed guide or ranger.
Accommodation is either in luxury lodges or designated camping sites.
All climbers should be aware that guides and porters are essential even to the lower peaks. Organised climbs with food and staff can be arranged at some cost through selected hotels. It is advisable to book well in advance. Although Kilimanjaro may be attempted by any strong mountain walker, visitors should be aware of the dangers of high altitude sickness which, in extreme cases, can be fatal. Scuba diving and snorkelling are particularly good around the islands of Zanzibar and Mafia , which have recently gained a high reputation amongst divers.