I was wondering if there are some nice day trips departing from Addis Ababa. I prefer to use any kind of public transport other than agencies or another kind of tranport.
I'll leave you to read the full document, but the destinations by name are:
- Aba Samuel and the Akaki River
- Adadi Maryam and Melka Kontoure
- Addis Alem
- Awash River and Koka
- Bekele Recreation Park
- Bishofu (Debre Zeit)
- Bole River
- Chilimo and Gaji Forest
- Debre Libanos
- Derba and Mulu Farm
- Ittisa Tekle Haymanot and Kessem Gorge
- Marhabetie and the Jema Valley
- Menagesha Suba National Park
- Mount Furi
- Mount Zuquala
- Yerer Mountain
The document includes maps and details and descriptions of each trip.
In terms of transport however, while they say it's up to you, the first page does indicate it's worth considering taking a guard and driver. Possibly some of the locations are not that safe, or accessible by public transport. It does describe when you'll need a regular 'saloon' car or a 4WD.
Note that taxis and minibuses are considered public transport there anyway, and some rate them as the best public transport there, and they're cheap. So you really could hire a driver and get them to take you to one of them, or negotiate a day rate.
Of the list, Entoto sounds like the closest and most accessible, and certainly possible with other items on your own, with a taxi and / or public transport. An example of someone else doing that here.