San Anton, Mountain peak near Getaria, Spain.

San Anton is a mountain and half-island off the coast of Getaria, Gipuzkoa, attached to the mainland by a breakwater. Its steep slopes rise from the Cantabrian Sea, and its flatter, tree-covered top is decorated with rocks, including one called Armeria euskadiensis. The silhouette, seen from certain points, resembles a mouse, with the town and its isthmus forming the tail.

From the 15th century onward, the mountain served as a key observation point for Basque whale hunters and merchant ships. As whaling declined in the region, this strategic importance gradually faded.

The mountain serves as a familiar landmark in the daily lives of local residents and defines the view from town. Fishermen and inhabitants reference it constantly when navigating and talking about their connection to the sea.

The summit is reached by a path from the harbour side of Getaria; the top is flat and shaded by trees, with the Katxapo hut standing at the highest point. The slopes below are abrupt rock faces, so walkers stay on the marked line. The 1863 lighthouse and the farmhouses Abeta, Agoteaundi and Gure ametsa stand on the mountain's flanks.

When viewed from certain angles, the mountain's outline resembles a mouse, earning it the affectionate local nickname Ratón de Getaria. This playful observation connects the landscape to the region's coastal character.