Morne Gommier, Volcanic mountain in Le Marin, Martinique.

Morne Gommier is a volcanic hill on the Le Marin commune in southern Martinique, formed between 11 and 10 million years ago; its last eruption was a lava flow toward the hamlet of La Duprey. A viewpoint platform was built on the southern shoulder at 271 m, giving a 360° view over the Cul-de-Sac du Marin, Saint Lucia, Diamond Rock and Morne Larcher. A ridge path runs 2 km southeast to Morne Acca.

The mountain formed from volcanic activity during the Miocene period, with its last lava flow occurring around 10 to 11 million years ago. This ancient geological history makes it a remnant of Martinique's volcanic past.

The name gommier refers to the gum tree, and the summit's south antecime carries a laid-out viewpoint at 271 m. From the platform the whole Cul-de-Sac du Marin, the Rocher du Diamant and Morne Larcher can be picked out, and walkers continue along the ridge path to Morne Acca, 2 km to the south-east.

The observation platform sits on the southern antecime at 271 m, reached by trail; no parking area is documented at the trailhead. A classic route follows the ridge line southeast to Morne Acca, 2 km away. The summit itself is 256 m, so the platform is not the highest point.

From the observation deck, visitors can see not only Le Marin but also Saint Lucia and Diamond Rock across the water in the distance. This vantage point reveals the geography of multiple islands and volcanic formations in a way that few other spots in the region offer.