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Thirasia Island: A quiet escape just across from Santorini

Just across the water from Santorini’s cliffs, Thirasia (or Thirassia) island was once part of the same volcanic landmass. This rugged little island broke away during the great Minoan eruption. It's not that crowded and you won't find many or any rooftop bars or glossy hotels. Just whitewashed houses, stepped walking paths, and amazing views of Santorini caldera. If your cruise drops anchor here, take it as a sign to slow down. Explore its hilltop villages, grab fresh seafood by the dock, or just watch the sea go still.

Why visit Thirassia Island

It’s Santorini before Santorini was famous

Step into villages like Manolas, Potamos, Agia Irini, and Korfos, and you’ll see what the Cyclades looked like before they became popular. Narrow alleys, whitewashed homes, and the occasional lazy cat perched on a sun-warmed step.

It carries the layers of time

Thirasia’s modest size hides a deep historical imprint. You’ll find traces of Minoan settlement and fortification ruins dating back to the Venetians. Legend says it was named after Therasia, the daughter of King Theras, a 9th-century BCE Spartan who colonized the island we now call Santorini.

You can go hiking here!

A string of scenic footpaths connects the island’s quiet corners. The trail from Manolas to Riva is one of the most popular, skimming cliff edges and tucked-away chapels. Follow the path up to the Prophet Elias chapel to reach the highest point on the island with sweeping caldera views.

There are churches in every direction

With over 20 chapels and churches scattered across the island, Thirasia is a quiet pilgrimage of its own. Highlights include the hilltop Monastery of the Assumption of the Virgin and the photogenic Agios Konstantinos.

Things to do on Thirassia Island

Guests hiking on volcanic terrain during Santorini cruise tour, Greece.
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Walk the trail from Manolas to Riva

This gentle downhill walk connects the cliffside village of Manolas to the small port of Riva. It’s about 2 km long and winds past gardens, quiet homes, and open Aegean views..

Taste wine at Mikra Thira Winery

Tucked into the volcanic soil near Agrilia, Mikra Thira is the only winery on the island. You can sample local labels made from Assyrtiko grapes. The setting is peaceful, and the wine tasting is simple, unfussy, and all the better for it.

Try traditional Thirasiot cuisine

Tavernas in Korfos and Riva serve food that feels like home cooking. Tomato fritters, fava purée, grilled octopus, and goat cheese pies are some of the things you can try. Most ingredients are grown on the island, and many dishes are made the same way they’ve been made for generations. It’s a good place to skip the menu and ask what’s fresh.

Climb to the Chapel of Prophet Ilyas

This whitewashed chapel sits at the highest point of Thirasia and can be reached by foot from Manolas. It’s a steep climb, but the reward is a sweeping view of the caldera, Santorini’s cliffs, and the scattered blue of the Aegean.

Swim at Agia Irini Beach

Agia Irini (also called Santa Irini) is a quiet, pebbled beach near Riva. It’s not organized, but that’s part of the charm. The water is clear, calm, and usually crowd-free, especially if you arrive with a cruise. It’s a great spot for a short swim stop or a peaceful moment off the trail.

Plan your visit

Ammoudi Bay with sailboats and volcanic cliffs, Santorini, Greece.
  • Many Santorini caldera cruises include a short stop at Thirasia, usually docking at the small ports of Riva or Korfos.
  • Cruises depart from the Old Port in Fira, Athinios Port, or Vlychada Marina depending on the tour type.
  • If you’re visiting independently, local ferry boats connect Thirasia and Santorini from Ammoudi Bay in Oia. The ride takes about 15 minutes.
  • The climb from Korfos port to the main village of Manolas involves around 200 steps or a short donkey ride if available.
  • There are no cars for rent on the island, so plan to explore on foot.
Tourist with backpack walking by a white church with blue dome in Santorini.
  • Late spring (May–early June) and early autumn (September–October) offer ideal weather for walking.
  • Mid-summer (July–August) is the busiest time, with a lot of heat and cruise traffic.
  • Mornings and late afternoons are best for hiking and photography, especially if you’re visiting without a tour.
  • Sunset is peaceful from hilltop spots like Prophet Ilyas Chapel or the edge of Manolas.
  • Most organized tours stop at Thirasia for 1–2 hours, often paired with hot springs or Nea Kameni.
Woman walking on a path with white buildings and sea view in Santorini, Greek Islands, Greece.
  • Wear walking shoes or sturdy sandals. The paths are uneven, and some trails are full of gravel or steep.
  • Carry water, especially if you're hiking to villages or chapels; shops are limited outside Riva and Manolas.
  • Bring some cash in small notes if you plan to eat at a taverna or buy local wine or snacks.
  • A small daypack is useful for keeping your hands free while exploring on foot.
  • If you're stopping by cruise, a towel and swimwear are helpful in case of a spontaneous beach or swim break.

Frequently asked questions about Thirassia Island

Most visitors arrive as part of a Santorini caldera cruise, which docks at Riva or Korfos. There are also small ferries and water taxis from Ammoudi Bay in Oia.