Some borders cost an hour. Some cost two days.

The easy ones

Kenya to Tanzania by air, Mara to Serengeti. The most common two-country join in East Africa. Immigration is handled at the airstrip, the flight is short, and the two ecosystems are continuous — you are crossing a political line rather than a landscape.

Rwanda to Uganda by road. Good tarmac, a short formality at the post, and a few hours between the gorilla areas of each country. The one genuinely pleasant land crossing on this list.

Kenya to Rwanda by scheduled jet. Under two hours, several times a day, and it connects to Kigali’s road network rather than a light aircraft circuit — which is why Rwanda slots onto a Kenyan trip more neatly than its distance suggests.

Tanzania to Zanzibar. Twenty minutes in the air. It is a separate immigration formality despite being the same country, which surprises people, but it is quick.

The hard ones

East Africa to Botswana. Not a border crossing in any practical sense. It is a long connection through Nairobi, Johannesburg or Addis, usually with an overnight at one end, and it costs the better part of two days.

On a fortnight that is survivable if you want both badly. On ten days it is most of the reason the trip will feel rushed. We would rather tell you that before you book than afterwards.

Any crossing with your vehicle and guide. Cars and guides generally do not cross borders. You change vehicles at the post and meet a new guide on the other side, which matters if the relationship with the guide was part of what you were buying.

Road crossings in the far north or west. Possible, occasionally interesting, and slow in a way that consumes the day either side. Rarely the right answer on a holiday.

Visas

Visa rules move often enough that publishing specifics here would be a disservice — a page written a year ago is a confident source of out-of-date information.

What is stable: a single visa covering several East African countries has existed in various forms, most nationalities can obtain what they need in advance online, and Zanzibar is a separate formality from mainland Tanzania.

We confirm the current position for your specific nationality and route as part of the planning, and we say plainly when something has changed recently.

The question worth asking early

Not "can we visit both?" — you almost always can — but "what does visiting both cost me in days, and what would I do with those days instead?"

A second country that costs two days is a good trade on a three-week trip and a poor one on a ten-day trip, where the same two days would buy a third night at each of two camps and change how both of them feel.