2017: Tresviso 2017 focused exploration in the Cueva del Nacimiento in the Urdon Gorge (Tresviso, Cantabria). Avens at the back end were climbed, increasing the height to +534 m from the entrance, and with more leads identified. Sump 2 in Cueva del Marniosa was dived, with dry stream passage found beyond.
Read more on this year’s accomplishments