Coco de Mer and the Vallee de Mai

Long before anyone had set foot on Seychelles, the coco de mer was already famous. For centuries its enormous nuts washed up on far-off shores with no one able to say where they had come from, and they changed hands for fortunes among kings and merchants who were convinced they held magical powers. Sailors named them coco de mer, the coconut of the sea, believing they grew on some phantom tree beneath the waves. The truth, when it finally surfaced, was stranger than any of the legends. The nut grows in one shaded valley, on one small island, and nowhere else on earth.

The largest seed in the world

The coco de mer palm produces the heaviest seed of any plant alive, a glossy, two-lobed nut that can weigh well over twenty kilograms inside a husk that is larger still. These are slow, ancient trees that take decades to reach maturity and can live for centuries, and they have a quirk that delighted the early naturalists. The palms are either male or female, the males raising long catkins and the females bearing the great rounded nuts. That division of the sexes, together with the unmistakable shape of the seed, fed island folklore for generations and only deepened the plant’s mystique.

Where it grows: the Vallee de Mai

The living heart of the coco de mer’s world is the Vallee de Mai on Praslin, a palm forest so intact that it was named a UNESCO World Heritage site in 1983. To walk its trails is to see the islands much as they were before people arrived, the high canopy filtering the light and ringing with the call of the rare Seychelles black parrot, the forest floor strewn with fallen fronds longer than a person is tall. A smaller wild population clings on across the water on Curieuse Island, but the Vallee de Mai is where you go to stand beneath them.

Visiting the reserve

For all its rarity, the Vallee de Mai is straightforward to visit. Well-marked loop trails wind through the forest and take an hour or two at a gentle pace, and the guides at the entrance are worth their fee, pointing out the male and female palms and the birds you would otherwise walk straight past. An entrance fee is payable at the gate and goes directly towards protecting the reserve, so check the current rate when you arrive. Aim for the cooler, quieter morning hours, and bring water and proper shoes for the shaded paths.

The rules on buying one

You can take a coco de mer home, but not on a whim. Because the species is strictly protected, every genuine polished nut sold to visitors carries a numbered government export permit and certificate, and that paperwork is what allows it to leave the country and clear customs on the way home. Buy only from licensed sellers who hand you the permit with the nut. One offered without it, however tempting the price, cannot legally be exported and is best left on the shelf.

Make it a Praslin morning

The Vallee de Mai sits right in the middle of Praslin, a short drive from the island’s celebrated beaches, so the natural plan is a morning under the palms followed by an afternoon on the sand at Anse Lazio. A hire car or a taxi makes that pairing effortless, and basing yourself on Praslin for a few nights gives you time to enjoy both the forest and the coast without watching the clock.