In the north, highlights include the Serengeti, Ngorongoro Crater and Kilimanjaro itself. In the south, highlights include the Selous Game Reserve and Ruaha National Park. Reasonably varied accommodation in most destinations. Trekking (including Kilimanjaro climbs) and walking safaris. Game-viewing by day or night in 4x4 vehicles. Boating safaris (Selous only). Traditional people, particularly in the north. Beach extensions if required, particularly the spice islands of Zanzibar, Pemba and Mafia (snorkelling, scuba diving, deep-sea fishing). Over 1,200 species of birds Wildebeest migration on short grass plains of Serengeti (January and February) June to October (all safari destinations) December to March (generally only the north)