More than a century after tortoises became locally extinct on Galápagos National Park’s Floreana Island, 158 giant tortoises were released back to the island on February 20.

It was made possible in part by traveler contributions to the Lindblad Expeditions-National Geographic Fund, which has provided more than $1 million in sustained support for the Floreana Ecological Restoration Project since 2015.

The project was launched over a decade ago to restore the island’s natural balance through a holistic and community-centered approach, Lindblad said in a statement.

“The return of giant tortoises to Floreana Island is an extraordinary milestone for the Galápagos and a powerful example of what expedition travel can and should support,” said Amy Berquist, VP, Conservation, Education & Sustainability at Lindblad Expeditions.

“This achievement reflects years of science, leadership from local stakeholders and governmental bodies, and community collaboration. The success on Floreana is a reminder that when travel is rooted in respect, education, and collaboration, it can help protect the very wonders that draw us there in the first place.”

As explained, these tortoises play a critical role in maintaining their ecosystems, as they spread seeds of native plants as they burrow and create habitats for other wildlife.

The release is part of a science-driven plan extending through 2030, with each species introduction guided by habitat studies, adaptive management, and community participation.

It is seen as a sign that Floreana Island may one day be able to again support a healthy population of endemic species that once lived there.