El Junco is lagoon formed by a collapsed cone of a long-extinct volcano that has transform into a fresh water source over the years. Located in the highlands of San Cristobal island, this is one of the very few permanent sources of fresh water in the whole archipelago. You can hike to the lagoon by using the long series of steps to the top. You can also go around the crater to observe le local fauna and flora and enjoy the spectacular view of over the entire island of San Cristobal.

This is a nice hike to do to benefit the fresh air of the island.