Mount Saint Catherine, Volcanic summit in Grenada.

Mount Saint Catherine is the highest peak in Grenada, a heavily weathered stratovolcano whose summit marks the boundary between the parishes of St. Mark and St. Andrew. Its roughly 1.5-km horseshoe-shaped crater opens to the east, and lava domes lie across its flanks.

The mountain formed as the youngest of five volcanoes in Grenada and reflects the island's volcanic past. Its last recorded eruptions date back to the Pleistocene period.

The summit marks the boundary between the parishes of St. Mark and St. Andrew, so the peak itself is the line locals point to. The massif is the youngest of Grenada's five volcanoes, and the Seismic Research Center of the University of the West Indies monitors it. Guided trips from Tufton Hall also lead to Tufton Hall Waterfall, the highest on the island, off the mountain's southeastern flank.

Several trails climb through the forest reserve to reach the summit, with guided options available that can include visits to nearby Tufton Hall Waterfall. Wear sturdy hiking boots and come prepared for wet and muddy conditions as you walk through the woodland paths.

Mount Saint Catherine is the only one of Grenada's five volcanic centres still considered live, because its summit and flanks keep hot springs and fumaroles. The Seismic Research Center of the University of the West Indies monitors the volcano. Its form is unusually well preserved for the island, though it has probably not erupted since the last Ice Age.