The trip, between 75 and 90 minutes, costs $78 round trip.
The bus might have cost $250 round trip; the train $400.
Reserved a month in advance, the tickets cost $199 round trip each.
The ferry costs $12.50 round trip, $6.25 for children up to 12.
Frankfurt also costs $250 round trip, but you can stay up to three months.
Our flight from Arusha took an hour and cost $330 round trip.
The first two tickets must cost at least $200 each round trip, with a minimum stay of four nights, including a Saturday.
The cruises and shuttle service cost $19.25 round trip, $15.50 for children.
The journey takes about an hour and costs $19 round trip.
The summer service will cost $26 round trip for adults and $13 for children.