Grotta Bella, is a natural cavity located a short distance from the small village of Santa Restituta and about 12 km from Avigliano Umbro (TR). The cave, located in a foothill area within a wooded area, opens onto the slopes of Mount L’Aiola which is the easternmost offshoot of the Amerini Mountains. The irregularly circular cavity has a larger diameter of about 40 meters and a height, at the highest point, of about 10 meters; behind the main entrance hall there are a series of side tunnels rich in stalactite and stalagmite concretions. Of great archaeological interest, today it cannot be visited and is closed with a fence and a fortified gate from which, however, the entrance to the cave can be seen.