Trizonia may be tiny, but it proudly holds the title of the largest—and the only inhabited—island in the Corinthian Gulf. Nestled at a unique crossroads of the Greek mainland, this little-known destination offers a tranquil escape from the bustle of modern life.
A Picturesque Island Frozen in Time
Measuring just 2.5 square kilometers with a maximum length of 3 kilometers, Trizonia is one of Greece’s smallest islands. Yet, what it lacks in size, it more than makes up for in charm. Its colorful houses, olive groves, and abundant oleanders paint a vibrant picture that feels plucked from a storybook.
Peace reigns supreme here. There are no cars—their use is banned by law—ensuring that the only sounds you’ll hear are cicadas buzzing, waves gently lapping the shore, boats gliding in, and the cheerful chatter of visitors. The island is beloved by locals on both sides of the Gulf, from Fokida to Achaia.
Located just 500 meters from the mainland, across from the villages of Spilia and Glyfada, Trizonia is just a short boat ride away. Small boats ferry visitors back and forth throughout the day, transporting those seeking a few peaceful hours—or days—on this island where time seems to stand still.
Life on Trizonia
The island is home to a small community of about 160 residents. There are around 50 houses, a quaint harbor, a single church, a well-equipped marina, several seaside tavernas with tables brushing the surf, and four intimate beaches—each perfectly proportioned to the island’s scale.
The main beach is located near the harbor, while Punta lies 2 kilometers to the southeast. Two more beaches—Aspro Chalikia and Kapsales—face the Peloponnese, offering serene views and quiet waters.
Despite its modest size, Trizonia is an ideal destination for day trips, family vacations, and anyone in search of relaxation. Its marina also serves as a key stopover for yachts sailing between the Saronic or Aegean Seas and the Ionian via the Patraic Gulf.
A Strategic Past and Onassis' Unfulfilled Dream
Historically, Trizonia played a pivotal role in the Corinthian Gulf. Located roughly equidistant from both Lefkada and Piraeus—about 89 nautical miles from each—it was once a strategic resting point for sailors. In its naturally sheltered harbor, mariners would anchor for the night, awaiting calmer seas before continuing their journey. Today, luxury yachts often do the same, using Trizonia’s modern marina as a peaceful layover.
The Island That Caught Onassis’ Eye
The origins of the island’s name remain a mystery, with three competing theories. One attributes it to the charming trizoni (tree cricket) insect. Another suggests it’s a variation of “Trionisia” (“Three Islands”), referring to the trio of islands in the Trizonia cluster. The third theory links the name to the three sea routes from which the island is accessible: the Ionian (west), Piraeus (east), and the Peloponnese (south).
What we do know for sure is that Trizonia captivated none other than Aristotle Onassis. According to several accounts, when the famous shipping tycoon was searching for a private island to purchase, he made multiple visits to Trizonia—arriving either aboard his legendary yacht Christina or by seaplane—in an attempt to acquire it.
Locals still recall those glamorous visits. Despite his persistence, Onassis was ultimately unsuccessful in purchasing Trizonia and instead set his sights on Skorpios, which he transformed into his private paradise.
Trizonia remains a lesser-known yet unforgettable destination—an island that embodies quiet charm, timeless beauty, and just a touch of mystery. Whether you’re seeking a peaceful retreat or a glimpse of Greece untouched by mass tourism, this tiny island in the Corinthian Gulf is well worth the trip.
