We did our visit to Chobe National Park as a long day trip from Livingstone, Zambia (Victoria Falls). The journey from Lvingstone involves a 90 minute drive from Livingstone to the border, a boat ride across the Zambezi River (there is no bridge), and then another 20 minute drive to Chobe. At the Zambezi River crossing, there is a public ferry available, but it is faster and not much more expensive to take a private speedboat across the river. The key thing is to make sure that your boat is going to right country. Four nations meet at this point (Zambia, Zimbabwe, Botswana, and Namibia). You don't want to accidentally end up in the wrong one without a visa. If you are staying in Livingstone, your hotel should be able to arrange taxis on both sides of the river for you. The entire journey takes about 2 hours.
A south-African truck driver was stuck at the customs on the Botswana border, and had not enough money to cross Botswana with his truck. I paid the customs the extra 200 Pula and joined his truck to Kasane. It was a nice ride through the Chobe National park, and he stopped the truck so I could see some wild animals.
The immigrant officer will probable refuse to stamp your passport if he understand you will enter Botswana on your feet. Hitch-hiking is dangerous due to the wild animals. The officer told me to write the registration number on the "arrival card" in the field "way of transportation".
The 50 km paved road from Ngoma to Kasane goes into a national park with a lot of wild animals. It's not allowed to go out of the car. Hitch-hiking is of course dangerous. The road is closed from 08 PM to 06 AM.
As part of our Kumuka overland safari of Botswana, Anne and I enjoyed a Chobe River sunset game viewing cruise. This cruise was included in the price of the safari.
From the time we stepped on board, we were impressed with the size of the craft, the shade provided, and the amount of room that the boat provided to the passengers and the unobstructed views from all sides of the boat.
The crew were skillful and got the boat right up to the bank or extremely close to the wildlife in the water, which allowed for excellent photo opportunities.
This boat was also well equipped with tables and chairs and a very clean toilet.