- Every year a group of African photographers, artists, takes road trip
- "Invisible Borders" group aims to find new narratives about the continent
- So far, the team has held four road trips, exploring different parts of Africa
- It aims to complete its first inter-continental journey next year by reaching Sarajevo
(CNN)Emeka Okereke is a hard man to pin down. When we spoke earlier this month, he had just arrived in Lagos from Abuja, a few days after returning to Nigeria from Chad and just before heading to Accra to put together a photography exhibition in the Ghanaian capital.