The Galapagos whale shark (Rhincodon typus) is a species of shark that is considered the largest fish in the world. Galapagos whale sharks can measure up to 40 feet in length and weigh up to 20 tons. They have a robust and cylindrical body, a large and flat head and a large mouth in the shape of a bow. Their skin is bluish-gray with white spots and vertical stripes. The Galapagos whale shark feeds mainly on plankton, krill, small fish and squid. They are known for their peaceful behavior and ability to swim slowly near the surface of the water, which makes them popular with divers and wildlife watchers.

Galapagos whale sharks can be seen all year round. However, the best time to observe them is usually between June and November, when the waters are cooler and rich in nutrients, which attracts plankton and small fishes that whale sharks feed on. During this period, there is a greater concentration of these animals in the waters of the Galapagos Islands, which increases the chances of seeing them.

Galapagos whale sharks can be seen in different areas around the Galapagos Islands, but some places are particularly known to offer good viewing opportunities. Some of the most popular areas to see Galapagos whale sharks include: - Isabela Island: This island is known to offer whale shark watching opportunities between June and November, especially in the Bolivar Channel and Tagus Cove areas. - Darwin Island: This isolated island located in the north of the archipelago is considered one of the best places to observe whale sharks in Galapagos, especially between June and November. - Fernandina Island: Especially in the areas of Punta Espinosa and Caleta Tagus. - Cape Douglas Marine Reserve: this reserve located on Fernandina Island is another popular place to see Galapagos whale sharks.