7 Best Greek Islands to Visit – Hidden Gems & Must-See Spots

Which Greek Island Should You Visit First?

1. Milos – The Island of Colourful Beaches

Milos is a volcanic wonderland with moon-like landscapes and over 70 stunning beaches, each with a different colour and texture. Unlike the crowded hotspots, Milos remains a serene paradise where you can explore sea caves, natural hot springs, and white-rock cliffs.

✈️ Flights to Milos: Available from Athens (45 min) or by ferry from Piraeus (3-5 hours)
🌟 Hidden Gem: Kleftiko Caves – Only accessible by boat, these dramatic white rock formations and turquoise waters make for an unforgettable swim.

2. Naxos – The Underrated All-Rounder

If you’re looking for the best Greek island that has it all, Naxos is your answer. Unlike Mykonos, Naxos offers golden beaches, mountain villages, ancient temples, and authentic Greek charm—all without the tourist chaos.

✈️ Flights to Naxos: Daily flights from Athens (40 min) or a ferry ride from Santorini (2 hours).
🌟 Hidden Gem: Alyko Cedar Forest – A secret coastal forest next to an abandoned luxury hotel, with secluded beaches and crystal-clear waters.

3. Folegandros – The Santorini Alternative Without the Crowds

With whitewashed villages, breathtaking cliffs, and deep-blue Aegean waters, Folegandros feels like a mini Santorini—without the high prices and cruise ship crowds. It’s a haven for travelers seeking tranquility, authenticity, and incredible sunsets.

✈️ Flights to Folegandros: No airport, but you can take a ferry from Santorini (50 min) or Athens (4 hours).
🌟 Hidden Gem: Katergo Beach – A wild, untouched beach with electric-blue water. It’s only accessible by boat or a scenic hike.

4. Ikaria – The Island Where People Forget to Die

Ever wondered why some people live past 100? Ikaria is one of the world’s Blue Zones, where locals enjoy long, healthy lives thanks to fresh food, natural exercise, and stress-free living. It’s a dream destination for those wanting to slow down and immerse themselves in local culture.

✈️ Flights to Ikaria: From Athens (1 hour) or ferry from Piraeus (7-10 hours).
🌟 Hidden Gem: The Thermal Springs of Therma – Ancient healing hot springs that have been used since Roman times for relaxation and rejuvenation.

5. Astypalea – The Butterfly of the Aegean

Shaped like a butterfly, Astypalea is a hidden Cycladic paradise that combines the charm of Santorini with the seclusion of the Dodecanese islands. You’ll find sugar-cube houses, a stunning Venetian castle, and untouched beaches with zero crowds.

✈️ Flights to Astypalea: Direct from Athens (1 hour) or a ferry from Kos (3 hours).
🌟 Hidden Gem: Vatses Beach – A secluded bay with soft sand and crystal-clear water, perfect for unwinding in peace.

6. Koufonisia – The Maldives of Greece

Koufonisia is an exotic paradise with shallow, glass-like waters that rival the Maldives. It’s a tiny island where you can walk everywhere and discover secluded natural pools, golden beaches, and charming tavernas.

✈️ Flights to Koufonisia: No airport, but ferries from Naxos (30 min) or Athens (5 hours).
🌟 Hidden Gem: Pori Beach & Devil’s Eye Pool – A jaw-dropping natural rock pool where the sea forms an infinity-like lagoon.

7. Serifos – The Secret Escape for Nature Lovers

Serifos is a rugged, off-the-beaten-path island with wild landscapes, golden beaches, and some of the best seafood in Greece. It’s a paradise for hikers, photographers, and those looking to experience Greece in its most authentic form.

✈️ Flights to Serifos: No airport, but ferries run from Athens (2 hours).
🌟 Hidden Gem: White Tower (Aspropyrgos) – A mysterious ancient tower in the middle of the island, with no clear historical records—perfect for history lovers and adventure seekers.

Final Thoughts: Which Greek Island is Best for You?

✨ For stunning beaches: Milos, Koufonisia
🏛️ For culture & history: Naxos, Serifos
🌅 For romance & sunsets: Folegandros, Astypalea
🏖️ For peace & relaxation: Ikaria, Serifos

While Santorini and Mykonos are undeniably beautiful, the best Greek islands to visit are the ones that match your travel style—and often, the lesser-known islands offer the most magical, authentic experiences.

📌 Which Greek island is next on your bucket list?