Route nationale 5a (RN 5a) is a secondary highway in Madagascar of 406 km, running from Ambilobe to Antalaha. It crosses the regions of Diana and Sava.
The section from Ambilobe to Vohemar is completely unpaved and in very bad condition, particularly after rainfalls. From Vohemar to Antalaha the road is paved and in good condition.
(north to south)
4x4 Bush taxis that serve between Ambilobe and Sava
crossing Daraina
RN5a at Antsirabe Nord
Fanambana River bridge at Fanambana