Not all Spa hotels can boast an underground thermal cavity, and especially the largest in Europe, from whose rocky walls, encrusted with stalactites and stalagmites, exhale the beneficial vapours of Mother Earth, at temperatures ranging between 28 and 34 degrees °C. If you should hear about it, know that it is located in Grotta Giusti, among the gentle hills of the Valdinievole, in northern Tuscany. Inside the speleological complex, surrounded by an arcane, initiatory atmosphere, they hold music therapy concerts of Tibetan bells, meditation and yoga sessions, healing immersions or diving in the warm, enveloping hot spring. And the advantages of this enchanting resort, surrounded by a heavenly garden of aromatic essences, do not end here: in addition to wellness treatments, you can relax at the sumptuous Bioaquam thermal pool, participate in pilates sessions in the vast park, also equipped for sports exercises, rock climbing and bird watching, or inside the equipped Gym, or go on excursions to discover the surrounding area.