Tanzania · 30,000 km² · The Greatest Show on Earth
Serengeti
Expeditions
The wildebeest migration. The lion prides. The silence of the plains at dawn. AT ONE places you at the centre of the world's greatest wildlife spectacle — privately.
The Ecosystem
Africa's
Eternal Plains
The Serengeti-Mara ecosystem is the oldest and most intact grassland ecosystem on earth — spanning 30,000 km² across Tanzania and Kenya. It hosts the largest overland migration of any mammal species, and supports over 70 large mammal species and 500 bird species.
AT ONE navigates this ecosystem zone by zone, season by season — placing you exactly where the action is, in private vehicles, with guides who have spent decades reading the land.
1.5M
Wildebeest
3,000+
Lions
30,000 km²
Ecosystem
500+
Bird Species
Follow the Herds
The Migration
Calendar
The migration is a year-round event — never beginning, never ending. Each season brings a different theatre. ATONE guides you to the right place at the right time.
Annual Migration Route
Ndutu Plains
Jan–Feb
Central Serengeti
Mar–Apr
Western Corridor
May–Jun
Northern Serengeti
Jul–Oct
Eastern Return
Nov–Dec
Southern Serengeti
Calving Season
The Ndutu plains erupt with life. Up to 8,000 wildebeest calves born daily. Cheetah, lion and hyena hunt at extraordinary frequency.
Central Serengeti
Long Rains Begin
Herds begin moving north-west. Lush green plains, dramatic skies. Far fewer visitors. Exceptional photography light.
Western Corridor
Grumeti Crossings
The migration reaches the Grumeti River. Crocodile-filled crossings in a remote, rarely-visited zone. A hidden spectacle.
Northern Serengeti & Mara
Mara River Crossings
The apex of the migration. Wildebeest plunge into the crocodile-filled Mara River in one of nature's most dramatic acts. Witness it once and nothing else compares.
Eastern Serengeti
Return Migration
Herds stream south again through the Loliondo corridor. Short rains bring fresh grass. Elephant calves and impala fawns everywhere.
The Residents
Wildlife
Highlights
The migration draws the world's attention — but the Serengeti's resident wildlife is extraordinary year-round.
The Herd
Wildebeest
1.5 Million
The largest overland migration on earth. Their movement follows ancient rainfall patterns unchanged for millennia.
Year-round · Peak Jul–Oct
Kings of the Plains
Lion
3,000+
The Serengeti holds Africa's greatest density of lions. Multiple prides claim territories across the ecosystem.
Year-round
The Sprint
Cheetah
1,000+
The Serengeti plains offer the world's best cheetah viewing. Coalitions of males and mothers with cubs are regularly encountered.
Jan–Mar · Jun–Oct
Ancient Intelligences
Elephant
6,000+
Family herds move across the Serengeti-Mara ecosystem. Bulls patrol their territories along ancient woodland corridors.
Year-round
The Shadow
Leopard
Resident
The Seronera River valley is one of Africa's best leopard habitats. These solitary cats rest in fever trees with impala kills.
Year-round
The Pack
Wild Dog
Packs Present
Africa's most endangered large carnivore. Rare and thrilling — AT ONE guides know the territories of the resident packs.
Jun–Sep
Safari Planner
Your Wildlife
Journey Board
Track your wildlife goals and migration experiences — drag cards between columns as your safari unfolds.
Experienced
0 / 8
0%
Wish List
Witness a Mara River crossing
MigrationFind a leopard in fever trees
WildlifeWatch the calving season at Ndutu
MigrationTrack cheetah on open plains
WildlifeGrumeti River crossing experience
MigrationBalloon safari at dawn
ExperiencePlanned
Northern Serengeti — July allocation
ZoneWild dog pack territory search
WildlifeExperienced
Drag cards between columns · Changes are saved to this session
Trip Timeline
Safari
Calendar
Visualize your trip timeline — migration windows overlaid with your planned safari dates and task deadlines.
August
2026
Peak Mara Crossings
Northern Serengeti
Migration This Month
Peak Mara Crossings
Northern Serengeti
Deadlines This Month
No task deadlines this month.
Legend
Serengeti · Tanzania
"The plains do not hurry.
They have all the time in the world."
Choose Your Zone
Four Serengeti
Experiences
Each zone of the Serengeti offers a distinct character, season, and wildlife encounter. ATONE will design the perfect combination.
The Calving Grounds
Southern Serengeti
The Ndutu Plains in the southern Serengeti transform every January into the greatest nursery on earth. Thousands of wildebeest calves are bo…
The Great Crossing
Northern Serengeti
The northern Serengeti is the most remote and dramatic section of the ecosystem. When the migration reaches the Mara River between July and …
The Leopard Kingdom
Seronera Valley
Seronera sits at the geographic heart of the Serengeti and is one of the finest year-round wildlife destinations in Africa. The Seronera Riv…
The Hidden Crossing
Western Corridor
While the world watches the Mara River crossings in the north, the Western Corridor offers an equally dramatic spectacle — and almost nobody…
Begin Your Safari
The Plains
Are Waiting
Our safari specialists will match you to the right season, right zone, and right camp — and design a journey that exceeds every expectation.