A Benedictine monastery built in the 10th century and situated on the banks of the River Deza. Architecturally, it is an example of the transition from the Romanesque to the late Gothic, constituting one of the most characteristic monuments of medieval Galician art and influenced by Compostelan art forms; specifically, by the style created by Master Mateo in the cathedral of Santiago de Compostela.

The Deza Trail passes alongside Carboeiro Monastery and the free-falling waterfall, which, at 30 m, is the tallest in Galicia. The water itself comes from the River Toxa, a tributary of the Deza, lending its name to the waterfall. The trail crosses a leafy wood of oaks, chestnuts, birches and other autochthonous species, creating a unique landscape to captivate visitors.

A 17th-century pazo that houses the Centro de Xestión do Coñecemento Arqueolóxico (Archaeological Knowledge Management Centre) (Provincial Council of Pontevedra), the Museo Galego da Marioneta e do Xoguete (Galician Museum of Puppets and Toys) (Imaxina, Lalín Town Council) and Sala Loriga, a tribute to Spanish aviation.

Several archaeological campaigns, promoted by the Casa do Patrón – an ethnographical museum exhibiting items recovered from the excavations in the castro – have been carried out. Different dwelling structures, the wall and a double ditch cut into the rock were also uncovered.

Housed on the ground floor of Lalín Town Hall, CastroDeza is a space devoted to the revitalisation of cultural tourism. It is conceived as a virtual museum of castro (hillfort) culture, bringing together myths, castros and gastronomy.