There are so many wonderful places available for Day Tours, it will all depend with your location. 
- In Dar es salaam you will be able to do city tour with the museum and many more to learn and cultural shops are available also Dar by night how the city looks at night it’s a whole different view, a day by the island with food, snacks and drinks.
- For Zanzibar tour when in Dar it is possible to do a day tour you may depart by flight/ boat and return the same day…… A stone town city tour, prison island or Nakupenda tour it is all possible, a one of a kind to be precise.