Libreville's greatest asset is, probably, the seafront bord de mer where people gather daily to relax by the Atlantic Ocean. All along the seafront you will find some Gabonese sculptures some are 20 feet tall! looking over the beach.
You could also go in Nzeng-ayong to see the Arboretum de Sybang which is a huge tree sanctuary inside Libreville which groups thousands of local species. But make sure in advance that somebody will be there to open the gate. Once you are inside apply a huge amount of anti mosquito cream on your skin before entering the woods. The people there will remind you - they are very helpful.
The centre ville is also a nice area to visit, in which you are able to enjoy the nearby ocean breeze.
