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Los Gemelos(Santa Cruz Island) - BirdForum Opus

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Los Gemelos



Los Gemelos is but one location on Santa Cruz Island of the Galapagos Archipelago in Ecuador.

Los Gemelos translates into English as The Twins are two craters, twins, situated on either side of the road between Puerto Ayora and Baltra. However, they are not actually craters, but rather the result of the collapse of underground recesses causing the surface to collapse inward. It's an area of endemic Scalesia forest with wonderful views. [1]

The island's rocky coastline and varied habitat, along with what can be found in the Los Gemelos portion itself, offers visitors a good opportunity to observe the many unique wildlife and bird species that are present here. [4]


Notable Species

Birds in the Galapagos of Ecuador, as a whole, are numerous and varied. By extension, those found on Santa Cruz Island and Los Gemelos are no exception. Some of those with first-hand knowledge of this location have said it's known for the Woodpecker Finch.

Other noteworthy species here include the Galapagos Rail, Vegetarian Finch, Large Tree Finch, and the Galapagos Martin. [3]


As of 20 November 2020, no species have noted as rare for here, but some of the less commonly seen species might include the Eared Dove, Spotted Sandpiper, Snowy Egret, Barn Owl, and Peregrine Falcon.


Birds you can see here include:

Brown Noddy, Small Ground Finch, Lava Gull, White-cheeked Pintail, Gray Warbler Finch, Magnificent Frigatebird, Medium Ground Finch, Blue-footed Booby, Western Cattle Egret, Green Warbler Finch, Large Ground Finch

Other Wildlife

In addition to the rich assortment of bird species here, a visit here gives the opportunity go see the famous giant tortoises and iguanas of the area along with marine species such as sea turtles, rays, and sharks. [4]

Site Information

History and Use

Los Gemelos, is often called the twin craters. But in reality they are the result of lava tubes that formed as the result of a lava flow from an eruption at some point in the past. As it flowed, the outer portion cooled faster than the rest resulting in a shell while the molten lava continued it's movement inside that. Then after the flow ceased the cave-like tubes remained. As time progressed, these lava tubes collapsed in these two spots forming what today is referred to as craters. [5]

Areas of Interest

Nearby Areas of Interest

While the whole island is an interesting area, two places of note follow.

Charles Darwin Research Station

A scientific research facility that is heavily involved with the iconic Galapagos tortoises. Located approximately 22.8 km/14 miles south/southwest from Los Gemelos. It's estimated to be a half-hour drive.

El Chato Tortoise Reserve

A reserve involved with the giant tortoises. As well is noted as having potential for birding.

Access and Facilities

Consult a trusted travel professional for specific, up-to-date information regarding travel to this location.

Contact Details


  1. Galapagos Island.com – Santa Cruz Island - https://www.galapagosislands.com/santa-cruz/
  2. eBird – Santa Cruz -- Los Gemelos sinkholes - https://ebird.org/hotspot/L1629572
  3. Personal observations of Bird Forum member
  4. Wildlife Worldwide – Santa Cruz - https://www.wildlifeworldwide.com/locations/santa-cruz
  5. Galapagos Island.com – Santa Cruz Island - https://www.galapagosislands.com/santa-cruz/

Recommended Citation

External Links


  1. Los Gemelos Craters on OpenStreetMaps
  2. Los Gemelos, Galapagos, Ecuador on Google Maps

Content and images originally posted by enerprice