Einstein 
River, Plain, Ocean
Mara Triangle crossings, Kogatende crossings, then the dust washed off in the Indian Ocean.
You watch the same river twice from opposite countries. First from the Mara Triangle escarpment, where herds pile up on the Kenyan bank and crocodiles hold station in the current. Then from Kogatende, where the same animals commit on the Tanzanian side and come up the far slope streaming water. Between them, cheetah coalitions on the Namiri plains and short grass running to the curve of the earth. It ends on Mnemba sand with a dhow leaning offshore and salt drying on your forearms.
Best months
Late July to early October, and within that, mid-August to mid-September is the target. That is when the herds are split across the Mara River and you can see crossings from the Kenyan bank in the Mara Triangle and from the Tanzanian bank at Kogatende on the same trip. Zanzibar is in its cool dry season through the same window. Skip April and May, when the long rains close northern Serengeti camps.
-5.7000, 39.3000
Zanzibar Archipelago
Day by day.
Signature moments
The same river crossed twice, once from Kenya, once from Tanzania
Namiri Plains cheetah, in a research zone closed for twenty years
Balloon at sunrise over Kogatende, walking safari the same afternoon
Mnemba atoll reef wall, twelve bandas, no day visitors
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Day 1 Nairobi
Karen gardens and giraffes
Arrival at Jomo Kenyatta, transfer to Hemingways Nairobi or Giraffe Manor in Langata. Afternoon at the David Sheldrick elephant nursery on a private foster visit, then an early night.
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Day 2 Mara Triangle
Safarilink to the escarpment
Wilson Airport to Angama airstrip, roughly 50 minutes. Angama Mara hangs 300 metres above the Mara Triangle on glass-fronted decks. Afternoon drive down onto the plain.
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Day 3 Mara Triangle
Waiting at the crossing points
Full day on the western bank with a picnic lunch. Guides work the numbered crossing points, reading the herds. Balloon flight available over the Triangle as a supplement.
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Day 4 Mara Triangle
Big cats and the Oloololo ridge
Dawn drive for the Triangle's lion prides and resident cheetah, then an afternoon photographic session from Angama's dedicated vehicle with beanbags and a long-lens kit.
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Day 5 Olare Motorogi
East into the conservancies
Game-drive transfer across the reserve to Mahali Mzuri in Olare Motorogi Conservancy, twelve tents on the Ntiakitiak. Off-road and night driving permitted from the first afternoon.
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Day 6 Olare Motorogi
Night drives and no crowds
Guided walk at sunrise, siesta, then an afternoon and night drive for leopard, hyena den activity and hunting lion. Conservancy rules cap five vehicles at any sighting.
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Day 7 Arusha
Two hops south across the border
Safarilink Ol Kiombo to Wilson, road transfer to JKIA, Kenya Airways Nairobi to Kilimanjaro in about an hour. Legendary Lodge in the Arusha coffee estates for the night.
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Day 8 Northern Serengeti
Charter to Kogatende
Coastal Aviation or Auric Air from Kilimanjaro to Kogatende, roughly two hours with a stop. Sayari Camp by lunch, afternoon on the Mara River within twenty minutes of camp.
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Day 9 Northern Serengeti
The Tanzanian bank
Full day holding position on the river. When a crossing breaks the sound arrives before the animals do. Sundowners in the Wogakuria kopjes with resident leopard and klipspringer.
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Day 10 Northern Serengeti
Balloon, then walking
Sunrise flight with Serengeti Balloon Safaris and a bush breakfast on landing, then an afternoon walking safari along the Bologonja with an armed TANAPA ranger.
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Day 11 Central Serengeti
Namiri and the cheetah plains
Auric Air Kogatende to Seronera, about 40 minutes. Namiri Plains by Asilia sits in a former cheetah research area closed to visitors for twenty years. Afternoon on the Soit le Motonyi kopjes.
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Day 12 Central Serengeti
Kopjes, lion prides, night sky
Full day among the eastern kopjes for large lion prides and resident cheetah families. Optional pre-dawn start for hunting behaviour, star bed on Namiri's platform by request.
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Day 13 Zanzibar
Auric Air to the archipelago
Auric Air flies Seronera direct to Zanzibar in about 1h40. Boat transfer from Mnemba jetty to andBeyond Mnemba Island, twelve bandas on a private atoll ringed by reef.
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Day 14 Zanzibar
Reef, dhow, nothing scheduled
Snorkel or dive the Mnemba atoll wall with the island's marine team, green turtles on the sand flats, sunset dhow with the sail bellied out. Alternative: The Residence Zanzibar on the southwest coast.
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Day 15 Zanzibar
Stone Town, then home
Morning boat back, private walking tour of Stone Town through the spice bazaar and the old dispensary, lunch at Emerson Spice rooftop, evening departures from Abeid Amani Karume International.
Crossing the borders
The mechanics that decide whether a multi-country route works. We handle all of it, but you should know what it involves.
A Kenya eTA at USD 30 and a Tanzania e-visa are both required and both must be approved before departure. The East Africa Tourist Visa does not help here because Tanzania is outside the scheme.
The Nairobi cross-city move is the pinch point. Wilson to JKIA is 45 minutes without traffic and two hours with it, so we book the earliest Ol Kiombo departure and hold a three-hour buffer.
Safarilink, Coastal Aviation and Auric Air all cap luggage at 15 kg per person in a soft duffel including hand baggage. Hard cases are refused. Excess is bonded in Arusha and collected in Zanzibar.
Auric Air runs Seronera and Kogatende to Zanzibar daily, so the safari to beach transition needs no overnight in Arusha or Dar es Salaam.
What the price actually covers.
From USD 24,180 per person sharing. Permits, park fees and charter legs are inside that number, not added at the end. International flights and visas are not.
Maasai Mara Triangle reserve fees and Olare Motorogi conservancy fees
Serengeti National Park fees, charged per 24 hours from entry
Serengeti Balloon Safaris flight with bush breakfast
All Safarilink, Coastal Aviation and Auric Air charter legs
Nairobi to Kilimanjaro scheduled sector on Kenya Airways
Mnemba Island marine activities, snorkelling, diving and dhow sailing