Blue whales are one of the most amazing oceanic species and spotting these marine giants off the shores of the Chiloé archipelago requires a great stroke of luck.

This whale is named for its dark blue color, which is more pronounced in adult males. Their size is impressive: they can reach 30 meters in length and weigh up to 200 tons. Although they usually live in the open sea, blue whales also come ashore to feed.

The Chiloé archipelago is the privileged recipient of visits from this and several other cetaceans, such as Peale’s dolphins and Chilean dolphins. In order to see these interesting species, you must have a guide to sail or fly you over the area, observe the sea very carefully and have a lot of luck.

The truth is that whale watching is not something that most would consider easy. These species migrate and travel great distances, so they spend only short periods of time in specific areas. Normally they swim to great depths, they do not always rise to the surface and, when they do, their sighting is made difficult by the movement of the waves, the climate and the visual effect produced by their large size amid the immensity of the ocean. Sighting them requires sharp senses and patience.

In general, cetaceans generate a lot of scientific interest. Experts consider them indicators of the health of the marine ecosystem due, among other things, to their position in the food chain, their wide geographical distribution and their sensitivity to pollutants.