The nature reserve of La Trapa is a estate located on the southwestern side of the Tramuntana mountains. It is named after the Trappist monks that in 1810 setteld in the valley. During their stay they built a monastery, created a system of water supply through storage galleries, and built terraces and walls following the traditional dry-stone technique.
In la Trapa, elements of the traditional architecture can be found, such as the houses of the ancient monastery and the remnants of a chapel, a mill, the threshing floor. A required visit is the vantage point, an exceptional balcony with views over the Dragonera island, which looks like a dragon emerging from the sea.
The preservation of la Trapa is provided by the ecologist group GOB, which purchased the estate in 1993 by popular subscription.