01 Three thousand five hundred nests
This trip is for a narrow profile and it is worth saying early. Libreville does not offer a city: there is no old town, no monumental ensemble, no cultural scene to fill the days. What it offers is a position, and for anyone travelling for marine wildlife that position is extraordinary.
Nesting concentrates between October and March, with the bulk in December and January. It happens at night, walking the sand with a guide, without lights and without flash, and what you see depends on luck and patience. Other species nest in the area too, among them the olive ridley.
02 And in the other half of the year, whales
The second appointment happens in the opposite half of the calendar. During the southern winter, humpback whales come up from the south and pass along this coast, and can be seen from a boat in the waters outside the park, along with bottlenose dolphins. July and August are the core months.
Humpbacks in July and August; leatherbacks from October to March. The same stretch of coast, two enormous animals, and no chance of seeing them on the same day.
What sets this coast apart is not the number of whales but the number of boats: there is practically no whale-watching fleet here. In the world's great whale destinations a humpback surfaces surrounded by vessels; here, if it surfaces, it surfaces for you. It is a difference in experience hard to overstate.
03 Two appointments that never coincide
Here is the decision to take before buying the ticket, and it is worth taking it with the numbers in front of you. The two seasons do not merely fail to overlap: they fall in the two opposite climatic halves of the year, and each has its drawback.
Whale season coincides with the dry season, which here is the greyest time of year: July leaves 5 millimetres of rain but only 93 hours of sunshine, three a day. You will have a calm sea and firm tracks, and you will have an overcast sky almost every day.
Turtle season coincides with the wettest: October brings 419 millimetres over 22.4 days and November 464 over 23.1. December and January, the peak of nesting, improve somewhat — 298 and 243 millimetres — but they are still wet months. The trade-off is that in those months there is sun between downpours.
04 How the trip is put together
Five or six days is enough. One morning for the city — the seafront, the market, little else — and the rest on the far side of the estuary: you cross by boat from Libreville, sleep on the opposite shore and set out from there, to sea by day and to the beach by night depending on the season.
Everything is arranged in advance and in French. There is no scheduled transport to the park, no road access and no ready supply of tours you can book on the spot in the street. Gabon receives very few travellers, and that means both guaranteed solitude and logistics you have to sort out before arriving.
And the warning that decides it, which here is twofold. First: Gabon is one of the most expensive destinations in Africa, and it does not make up the difference with services but with the absence of people. Second: there are no guarantees. These are wild animals in a park with no viewing infrastructure, and there are trips on which nothing turns up.
If that strikes you as a reasonable price for thirty-five kilometres of protected beach and a sea without boats, this is your destination, and one of the best left. If you expect comfort, good weather and something to do when the wildlife fails to show, almost anywhere else will treat you better.
