We traveled to 27 countries for a year — without taking a single flight

Whatever floats your boat.

Two globetrotters have spent the past 15 months traveling the world without taking a single flight.

Tommaso Farinam, 25, and Adrian Lafuente, 27, are “sustainable explorers” who have moved between continents by hitching rides on strangers’ sailboats.

Planes — which emit around 90kg of CO2 per passenger per hour, depending on the aircraft — are an absolute no-go.

“We are ‘boat hitchhikers,’” Farinam, who hails from Italy, told Luxury Travel Daily. “We found one of our ‘rides’ on Facebook, talking to a boat captain who offered us a seat.”

The thrifty, eco-friendly move means the duo have each spent just $7,700 (£5,900) each while visiting 27 different countries.

Farinam and Lafuente kicked off their global adventure last summer, traveling through Europe on a shoestring budget.

They then spent 39 days at sea, sailing across the Atlantic to reach South America.

The pair have also traversed the Gulf of Panama, which was anything but smooth sailing.

“The first 10 days in the Gulf of Panama can only be described as absolutely terrible,” Farinam recalled. “We had very unfavorable winds, storms and big waves constantly. It was quite scary at first to think that we might flip upside down.”

Still, the pair aren’t willing to swap the sea for the sky.

After exploring much of South and Central America, the pair are sailing the Pacific Ocean in the hopes of reaching Australia.

“It’s been around three months since we started and we have visited some islands in the middle!” Farinam exclaimed.

They plan to explore Down Under for several months before making their way up to Asia by boat.

Farinam and Lafuente share their story with fans online as part of “Project Kune” – which is their commitment to showing the world that no-flight travel is more than possible.

“Our intention is to help in creating hope for a world where we, humans, are actually able to live in symbiosis with the rest of the vegetation, animals and other humans,” Farinam stated.