A ferry plies the Djibouti–Tadjoura and Djibouti–Obock routes two to three times a week (DFr700 one way, about three hours for either journey). It doesn’t operate from mid-June to mid-September. Boats leave from L’Escale.
Minibuses leave from various departure points south of town, including Cité Arhiba. They connect Djibouti City to Tadjoura, Galafi (at the Ethiopian border) and Obock. Minibuses to Tadjoura cost DFr1500 (three hours). Minibuses to Obock cost DFr2000 (about 4½ hours). For Galafi (and Yoboki), you'll pay DFr900 (three hours). Most minibuses leave early in the morning and only when they are full.