"Centro de Interpretação Ambiental da Caldeira Velha" or also simply known as "Caldeiras Novas" is very changed since the early years where the waterfall place was incredibly warm, people could go and climb to the top where there was a hot "sauna" covered with vegetation. Tourism and sign of times made it change for what's today, it's still pleasant when it's not completely full but it makes you wonder of amazing times where you didn't appreciate the huge gifts of nature.