Transport in Gabon. Modes of transportation in Gabon include rail, road, water, and air. The one rail link, the Trans-Gabon Railway, connects the port of Owendo with the inland town of Franceville. The largest seaports are Port-Gentil and the newer Owendo, and 1,600 km of inland waterways are navigable. Main roads connect virtually all major communities, but maintenance work is difficult because of heavy rainfall. Sharing a cab with another others is common practice, and fares vary from place to place depending on the distance covered. Carrefour IAI and Bombouchine have taxi stands around Libreville. You can also take bush taxis for longer trips.Ferries and boats travel along Gabon’s Atlantic coast, as well down the Ogooué River to Lambarene. Daily trips are available between Libreville and Port Gentil. There are also river journeys from Port Gentil to Lambarene, although they are not on any set schedule. You can catch weekly boat transfers between Port Gentil and the town of Omboué, which is a good base for visiting the Loango National Park. The trip can take anywhere from three to five hours, depending on the type of vessel and engine used. Rail travel in Gabon will definitely save you travel time. There are trains between Owendo and Franceville, but only a few times per week.