Today after breakfast, you will kayak the marble caves with a small group for about three hours. Learn geological theories about the formation of these unique cliffside architectural caves created along the shores of Lake General Carrera. View how the stone has been eroded by the movement of water and strong wind throughout the years, while you kayak the calypso-blue waters. Once back on shore, a well-earned lunch will be served. During the afternoon, your guide will bring you to the east on a less driven and stunning road inside Exploradores valley, up to a private park. There you will see the humid forests and their magnificent details with a magnifying glass. Frogs, insects, leaves, fungus, and an impressive variety of habitants of the local ecosystem, a tiny world to discover during this afternoon. Back to Puerto Tranquilo for dinner and accommodation.