The Moraig fault is a spectacular almost vertical rock wall. The polished appearance and the grooves formed by the friction of the blocks indicate the direction of the geological displacement that caused it. The fault appears to be suspended in the air over a lagoon, which inside houses the underwater entrance to the Riu Blanc.
Likewise, the cliff morphology and the different resistance of materials to erosion that formed this slope also forged other interesting landmarks such as the «Vasenilla» (collapse sinkhole) or the Cova dels Arcs, a few meters away.