This morning we climbed from C2 to C3. It’s not very far (just over a km) but the last part is very steep. Not technically demanding at all but just exhausting because of the altitude which is beginning to be the all overriding factor. Luckily, I have no single sign of high-altitude disease (like many others in the camp). Since carrying our camping stuff (tent, sleeping bags, food, fuel, mattresses etc) up is quite demanding, Pemba has the audacious idea to skip C4 completely and climb to the summit from C3. That is 1450 vertical meters at high altitude but with minimal luggage.