The next morning we started our two-day drive to Ullo. Once we got to the outskirts of Accra, we were really in a tropical landscape. Huge palms grew on both sides of the road as far as you could see and humidity hung in the air. We stayed on the main road as we went through towns heading north. The side streets were full of pedestrians with some motor bikes and only a few cars. Most of the shops and the market were near the main road, then behind were rows of houses on dirt streets.  The schools we passed were easy to spot when all the children were outside during recess. The school buildings were long, low, tan and white plaster buildings with large square windows. During recess the children in their yellow shirts and brown skirts and pants were running all over the schoolyard playing soccer or games in groups. By the evening of the first day, we were far enough north that the sky was getting much dustier. From November to March, Ghana experiences the Harmattan season, which is when a northeasterly wind blows from the Sahara Desert toward the Gulf of Guinea. The farther north you go, the more notable the effects are. A haze hang by the horizon and the sunsets glowed red and yellow through it.