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Greece is blessed with more than 6,000 islands scattered across the Aegean and Ionian Seas. These islands exhibit a colorful culture, rich history, a vast expanse of flora and fauna, traditional villages, locally grown food, and countless beaches.
Among these are a few gorgeous yet lesser-known islands that deserve to be on the list of the best islands in Greece. However, they are more remote than popular destinations like Santorini and Mykonos.
If you are a traveler seeking authenticity and solitude, you will find solace in these lesser-known islands, which provide endless opportunities for exploration beyond the otherwise well-trodden tourist path.
So, pack your bags and get ready to be charmed by these hidden gems that deserve to become top Greek islands. For now, you can get your exclusive Greece tour packages curated by Thomas Cook and set out on a new adventure—to Greece!
1. Kalymnos

Kalymnos
One of the lesser-known and yet the best islands in Greece, Kalymnos in Greece’s Dodecanese islands is a heaven for adventure lovers. It is one of the few places in the world famous for sponge diving, that is, diving in the water and to the sea bed to collect natural sponges.
The place also attracts thousands of rock climbers throughout the year, as Kalymnos is home to more than 3,000 climbing routes, including rugged terrain, cliffs, and caves. If you are not interested in diving or climbing, you can try other adrenaline activities, including hiking and boating. The island is sparsely populated and also makes for the perfect romantic getaway.
How to reach: You can hire a ferry or a speedboat from Kos, which takes about an hour or so to get to the island. You can also take a flight from Athens to reach Kalymnos.
Best Places to Stay: Kantouni Beach Boutique Hotel, Blue Dawn Kalymnos Luxury Villa and Suites, MasouriBlu Boutique Hotel, etc.
2. Milos

Milos
A gem of an island nestled in the Cyclades archipelago in Greece, Milos is a stunning amalgamation of sun-kissed beaches, whitewashed villages, delicious cuisines, and lovely locals.
Milos may not be among the top Greek islands, but it takes the cake to be home to the lunar-like white cliffs at Sarakiniko Beach, made from lava. Beyond Sarakiniko, Milos boasts numerous top beaches, such as Firiplaka, Tsigrado, and Paleochori. Each offers charm and activities like snorkelling, sunbathing, and beachside dining.
For a deeper dive into the island’s history and culture, exploring the ancient catacombs, picturesque villages like Plaka, and the iconic Venus de Milo statue at the Archaeological Museum are must-dos.
How to reach: You can take a ferry from Santorini or fly from Athens.
Best Places to Stay: Milos Breeze Boutique Hotel, Santa Maria Village, and En Milo.
3. Skopelos

Skopelos
An enchanting escape for those seeking serenity and natural beauty, the Skopelos archipelago in the northwest Aegean Sea is one of the less-travelled Greece islands.
According to mythology, Skopelos was founded by Staphylos, the son of Dionysus, the Greek god of wine, adding a mythical charm to this hidden gem of the Sporades region. Besides, Skopelos also served as the filming location for the hit film Mamma Mia. Its picturesque landscape, idyllic beaches, iconic churches, and cobblestone streets of the main town have captured the hearts of visitors worldwide.
Skopelos is also an excellent destination for hiking through lush forests and swimming in crystal-clear waters. One of the must-do activities is to try homegrown plums, chestnuts, figs, olives, and more.
How to reach: You can take a ferry or speedboat from Volos.
Best Places to Stay: Adrina Resort & Spa, cosy guesthouses, etc.
Read More : 10 Things To Do In Santorini – A Sheer Beauty Worth Capturing
4. Ikaria

Ikaria
Legend has it that Ikaria island is named after Icarus, the son of Daedalus, who flew too close to the sun, fell into the sea, and drowned near Ikaria’s shores. Since then, the mystical island of Ikaria in the North Aegean Sea has been one of the offbeat yet best islands in Greece to visit.
Besides mythology, the name ‘Ikaria’ also closely connects with the Japanese term ‘Inagi’, which translates as ‘reason for being.’ Based on this concept, Ikaria has one of the largest populations of centenarians in the world. Thus, Ikaria is celebrated for its slow life, healthy lifestyle, a rich diet comprising locally grown vegetables and wine.
Once you have learned about Ikaria’s history and legends, you can visit its top tourist attractions, especially the Ancient Temple of Artemis, a fascinating archaeological site dating back to the 6th century BC, and the imposing Koskina Castle, which offers panoramic views of the island’s rugged coastline.
Ikaria also offers many tourist activities, such as hiking along scenic trails and exploring charming villages, swimming in hot springs, and soaking in the vibrant local culture.
How to reach: A ferry or speedboat from the main islands of Greece.
Best Places to Stay: Captain Ikaros, Erofili Beach Hotel, Oinoi Hotel, etc.
5. Lipsi

Lipsi
Lipsi in the Dodecanese is surrounded by 24 islets shaped like necklaces. It is covered with sun-kissed beaches, azure waters, and rich flora and fauna. Lipsi’s biodiversity is so abundant and untouched that the European Union protects it.
You will find some of the rarest animals on this island, including sea turtles, Mediterranean monk seals, and dolphins. You can spot dolphins at the Aegean Marine Life Sanctuary before hitting the Platis Gialos or Hohlakoura beach to swim or relax under the Mediterranean sun.
Apart from water bodies, the island’s charming main town, with its traditional whitewashed houses and winding cobblestone streets, invites exploration, while the Panagia Harou Church showcases Lipsi’s rich cultural heritage.
Lipsi’s appeal also lies in its untouched natural surroundings, which offer opportunities for boating excursions, hiking adventures along scenic trails, and fishing with the locals, as fishing is one of their main occupations.
Visitors are encouraged to also partake in lively local festivals and try the fresh seafood of Lipsi, which only adds to an unforgettable island experience off the beaten path.
How to reach: A ferry or speedboat from Athens and Leros.
Best Places to Stay: Calypso Hotel, Lipsi Blue Hotel, Aegean Muses, etc.
6. Ios

Ios
Formerly known as a party destination, Ios has slowly grown into a traveller’s choice with attractions like Mylopotas Beach, renowned for its golden sands and crystal-clear waters, and Manganari Beach, a secluded paradise surrounded by rugged cliffs.
The iconic windmills overlooking Chora, the island’s main town, provide a picturesque backdrop for exploration. At the same time, the ancient ruins of Skarkos offer a glimpse into Ios’ fascinating history dating back to the Bronze Age.
Ios is also famous for its connection to the poet Homer, who is said to be buried on the island. Visitors can pay homage to this literary giant at the Homer’s Tomb archaeological site.
Ios offers outdoor enthusiasts a wealth of activities such as hiking, sailing, and snorkelling, allowing visitors to admire the natural beauty of one of the most stunning Greek islands.
As the sun sets, Ios transforms into a party paradise, with beach bars and clubs pulsating with music and energy until the early hours. So, be an explorer by day and become a party hopper at night.
How to reach: You can take a ferry or speedboat from Athens and other Cyclades islands, or a helicopter from Santorini.
Best Places to Stay: Levantes Ios Boutique Hotel, Acteon Hotel, Dionysos Sea Side Resort, CALILO, etc.
7. Alonissos

Alonissos
While it may not have the immediate name recognition of top Greek islands, Alonissos holds a unique charm among the country’s hidden gems. Its pristine landscapes, rich marine life, and vibrant cultural scene entice travelers seeking an authentic island experience.
Among its top attractions is the first underwater museum in Greece, the “Parthenon of Shipwrecks,” where visitors can explore ancient shipwrecks dating back to the Classical, Hellenistic, and Roman periods, submerged off the coast of Peristera Island.
Alonissos is also home to the National Marine Park of Alonissos and Northern Sporades, a protected area encompassing pristine beaches, secluded coves, and diverse ecosystems teeming with marine biodiversity. Visitors can take boat tours to spot dolphins, seals, and rare seabirds or dive into the azure waters to discover vibrant underwater landscapes.
Cultural enthusiasts will appreciate Alonissos’ thriving art scene, with local theatres hosting performances of traditional music and dance and contemporary art exhibitions showcasing the island’s creative talent.
Outdoor adventurers can explore Alonissos’ rugged terrain on hiking and cycling trails that wind through pine forests, olive groves, and scenic coastal paths. Kayaking and snorkeling expeditions offer opportunities to discover hidden caves and secluded beaches, allowing you to rejuvenate your soul in the lap of nature’s bounty.
How to reach: You can board a plane or ferry from Volos, Agios Konstantinos, and Kimi ports.
Best Places to Stay: Mar Adentro, Alonissos Beach Bungalows and Suites Hotel, Marpunta Resort, Yalis Hotel, etc.
8. Astypalea

Astypalea
Astypalea is part of the Dodecanese archipelago and is set to become the first sustainable island in the country. Also known as the “Butterfly Island” due to its unique shape, which resembles a butterfly with outspread wings, Astypalea is leading the charge towards a greener future.
One of the most attractive Greek islands, it aims to achieve zero emissions and sustainable mobility by 2030, pioneering initiatives such as the introduction of electric scooters and e-bikes and the promotion of eco-friendly transportation options.
Astypalea’s commitment to sustainability extends beyond transportation to include efforts to preserve its natural landscapes and promote eco-friendly tourism practices. It is undoubtedly one of the best islands in Greece, offering an opportunity to educate yourself about the environment and how we can preserve it.
Apart from that, you can explore pristine beaches, whitewashed houses, rugged coastlines, diverse flora, and traditional villages across this island, all while minimising their environmental footprint.
How to reach: You can get there by speedboat or ferry from Athens.
Best Places to Stay: Vithos Seaside Aparthotel, Pylaia Boutique Hotel & Spa, Aiolos Hotel, etc.
9. Ithaca

Ithaca
Steeped in history, mythology, and natural beauty, Ithaca, from the Ionian Islands of Greece, is the home of the legendary Odysseus in Homer’s epic poem.
Top attractions on Ithaca include the Cave of the Nymphs, believed to be the place where Odysseus hid his treasures, and the ruins of Odysseus’ Palace, offering a glimpse into the island’s mythical past. Mythological tours from nearby Kefalonia provide opportunities to explore sites associated with Odysseus’ adventures, such as the Cyclops’ Cave.
History enthusiasts will appreciate the island’s wealth of archaeological sites, including the ancient city of Alalcomenaeus and the Venetian castle of Agios Andreas. Pristine beaches like Filiatro and Sarakiniko beckon sun-seekers with their turquoise waters and golden sands, while picturesque villages like Vathy and Kioni invite exploration with their charming architecture and traditional customs.
How to reach: You can take a ferry from Kefalonia, Zakynthos, and Lefkada.
Best Places to Stay: Vaso Studios, Korona Apartments, Thetida Village and Studios
Read More : 25 Amazing Things To Do In Greece Before You Die
10. Karpathos

Karpathos
Karpathos is one of the many gems of the Dodecanese archipelago, one of the many untouched yet top Greek islands. The best-kept secret for travelers seeking an authentic Greek experience, Karpathos is dotted with rugged landscapes, unspoiled beaches, and rich cultural heritage,
One of the island’s top attractions is Olympos village, a picturesque hillside settlement frozen in time. Famous for preserving ancient dialects and customs, Olympos offers visitors a glimpse into Karpathian heritage through its colourful houses, cobblestone streets, and traditional festivals.
With its crystalline waters and golden sands, Apella Beach is another must-visit destination on Karpathos. Visitors can swim, snorkel, and sunbathe amidst stunning natural scenery, while Arkassa Beach offers a more secluded retreat for those seeking tranquillity.
For outdoor enthusiasts, the Olympos to Diafani trail offers an exhilarating hiking adventure that involves passing by ancient ruins and scenic viewpoints. Diafani, a charming fishing village on the northern coast, provides a perfect endpoint for the hike, where visitors can relax and savour freshly caught seafood.
How to reach: You can take a ferry from Kefalonia, Zakynthos, and Lefkada.
Best Places to Stay: Poseidon Blue, Maistralli Studios, Serenity Villa Karpathos House, etc.
Some of the best islands in Greece are still untouched and unspoiled, from exploring ancient Greek villages to learning local culture and lounging near pristine beaches. Our experts at Thomas Cook love curating exclusive Greece tour packages for those who like to step away from the crowd and follow the path less travelled!
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