The 'Trou à Diable' is a natural arch carved by the sea on the northern side of Marie-Galante island. It's an impressive and dark chasm that contrasts with the turquoise blue of the sea. If you're familiar with Guadeloupe, this place will remind you of the 'Porte d'Enfer' on the island of Grande-Terre.
The 'Trou à Diable' is rather difficult to photograph because there's no room to step back. A safety barrier has also been installed quite far from the edge, considering that the cliff is made of crumbly limestone and a fall into the chasm would certainly be fatal. It is strictly forbidden to step over the barrier due to the very high risk of landslides.
Gueule Grand Gouffre is a very touristy spot in Marie-Galante. Tour buses consistently make a stop there.