It has the biggest and longest lava flow, which is located in Sullivan Bay. Geologically speaking, this island is one of the most beautiful and unbelievable formations. The vast basaltic landscape performs smooth and unbroken surfaces with undulations and nods formed by the fluid lava that created the sculpture. It is located on the central west of the archipelago and is formed by two overlapping volcanoes. It is the 4th biggest of the archipelago.

It is an unpopulated island.

In Puerto Egas explore deep pools and caves carved from the lava shoreline, home to playful Galapagos fur seals as well as a variety of resident and migrant bird species.

Sombrero Chino offers a spectacular snorkel, swimming by a channel of shallow water, nursery of thousands of marine species and a small colony of penguins

Conservation. Something to notice today in this island is the absence of the thousands of land iguanas that Charles Darwin mentioned on his diary. They completely disappeared due to the presence of introduced species; especially goats and rodents that today, are gone. This is the biggest island on earth where introduced animals were eradicated. Tortoises have the chance now to repopulate the island, and they can be seen more and more often in our visits.

Charles Darwin Journey on Santiago. This is the island where Darwin stayed the longest, he knew already that the islands were something bigger and more important than they seemed when he first arrived, so on his visit, he expend 2 weeks and walked the whole island. Here he first noticed the difference in between the tortoises from different islands, which had different shapes and sizes.




Age: 0.7 million years

Area: 363.5 mi 2/585 km 2

Maximum Elevation: 2,974 ft/907 m


Egas Port named in honor of Jorge Egas, an entrepreneur who explored the island in the 1930s and opened a salt mine at the foothill of “Sugarloaf” Volcano. The site was actually visited in 1835 by the HMS Beagle and Charles Darwin, who described in his journals, a group of Spaniards salting tortoise meat with the salt extracted from the area.

The first part of the trail is comprised of volcanic ash (a tuff cone) and the other half of the trail is partially uneven terrain, comprised of volcanic basaltic rock that lounges the shoreline.

Along the shore, you can also find various bird species such as pelicans, blue-footed boobies, lava herons, yellow-crowned, night herons (locally called huaques), semi-palmated plovers, willets, yellow warblers, finches, and the highly territorial American oystercatchers, which usually lives in pairs that can occupy large extensions of the shoreline. We can also see sally light-foot crabs and large colonies of marine iguanas sunbathing on the volcanic rocks.

You have the option to visit the Salt Mines a trail of an approximate distance of 4 mi (8 km) round trip. It is a salty lagoon that’s located inside a crater.

  • Disembarking: Wet landing.
  • Type of Terrain: The  first part  at and then semi rocky.
  • Difficulty level: Intermediate.
  • Duration: 1:30 to 2-hour hike, 1 hour beach time or snorkeling.
  • Physical condition required: Medium.
  • Highlights: Volcanic black beach and wonderful landscapes, fur seal grottos, sea lion colonies, herons, hawks, oystercatchers, finches, doves, white-tipped sharks, sea turtles. We will be able to see the vegetation from arid to humid climate zones, but they have been seriously affected by intensive foraging by introduced goats, now eradicated. The surrounding area is a prime place for spotting and observing hunting herons-namely Great Blue Herons, Yellow-crowned Night Herons, and Lava Herons- as well as oystercatchers. Visitors will enjoy the sight of marine iguanas grazing upon algae beds at low tide, sharing space with the crimps on red Sally light-foot crabs and other wading birds.



Age: 0.7 million years

Area: 363.5 mi 2/585 km 2

Maximum Elevation: 2,974 ft/907 m


This visitor site is located at the southeastern portion of Santiago Island and represents a great important geologic interest; it features extensive lava flows which are believed to have been formed during the last quarter of the 19th century. The area is covered by Pahoehoe lava flows (Pahoehoe wich means in Polynesian language “easy to walk”); this type of lava is rare to the rest of the world but is common to the volcanoes of the Galapagos Islands and Hawaii, as they share the same volcanic origin.

You can see the path of lava flow as well as the various igneous rock structures formed from varying rates of flow, temperature of formation and pressure. Visitors can also find pioneer plants and “hornitos”, little ovens formed when bubbles escape from hot lava to form mini-volcanoes.

At 492 ft (150 m) from the beginning of the path, molds of some trees can be found. Details of the crust indicate that they were trees growing in small crevices where soil and moisture accumulate in sufficient quantity so they can grow.

After exploring the lava flow, you can swim and snorkel with playful sea lions off two small coralline beaches.

  • Disembarking: Dry landing
  • Type of terrain: Flat
  • Difficulty level: Difficult
  • Duration: 1:30 hour walk / 1 hour snorkeling / swimming.
  • Physical condition required: High
  • Highlights: This is the perfect place to see and feel the volcanic origin of the Galapagos.

Interested to visit this island? Available itineraries: