Finally, faults in the Afar Triangle show different directions, either oriented along the line of the Ethiopian rift or along the line of the Gulf of Aden/Red Sea. Along the coast are two mountainous ridges, the Danakil Block and the Ali-Sabieh Block, dissected by the harbour of the Djibouti (the Gulf of Tadjoura), one of two sea arms entering Afar: the other is the Gulf of Zula. Lake Abbe (also known as Abhe) is the location where the faults stop following the line of the Ethiopian rift: north of the lake they run along the axis of the Red Sea.