Main sights are Santa Maria Magdalena and Arenaza caves, both situated in Triano mountain range and the latter containing stalactites and rest of mining operations.

During the First Carlist War, the followers of Baldomero Espartero burned the forests surrounding San Pedro Galdames.

In 1946, a group of Maquis returned from the Cantabrian mountains to Bizkaia and constructed a sheltered in the cave of Uraiaga and the surrounding mines.

Notable peaks overlooking the valley include Pico Mayor to the northeast, Ganeran to the east, Luxar to the south, and Larrea to the southwest.

Despite being located in the west of Biscay near Bilbao, Galdames didn't experience the same population growth that other municipalities in the area – such as Barakaldo, Sestao, and Portugalete – had during the second half of the 20th century.