Portrait Billboard at AT THE Berger Roundabout, OKAKA, YENAGOA, Bayelsa state, Nigeria. This particular 48 sheet billboard is located along Berger roundabout, Okaka, Bayelsa state. This billboard holds good for companies desiring to lead a highly competitive market as it captures gazes of both adults, students, as well as mobile and urban clientele and it, offer 100% visibility to traffic directing towards Berger.