Kos travel guide

Things to Do in Kos: Ancient Ruins, Cycling, and Easy Island Hops

· 7 min read Island Guide
Ancient columns of the Asklepion ruins on Kos island with turquoise sea in the background

Kos is one of the most accessible islands in the Dodecanese and one of the few Greek islands where cycling is genuinely practical. It is also the island most closely associated with Hippocrates — the ancient physician considered the father of medicine, who was born here around 460 BC — and the Asklepion ruins are among the finest ancient sites in the Aegean. Add easy day-trip connections to Turkey and the volcanic island of Nisyros, and Kos offers more variety than its beach-and-hotel reputation might suggest.

The Asklepion

The most important historical site on Kos and one of the most significant ancient healing sanctuaries in the Greek world. The Asklepion was a centre of ancient medicine — a complex of terraced temples, treatment facilities, and sacred springs dedicated to Asklepios, the god of healing. It was here, or nearby, that Hippocratic medical practice was developed and taught.

The site sits on a hill 4km south-west of Kos Town, with views across to the Turkish coast. Three terraces of ruins survive: the lower terrace had baths and treatment rooms; the middle has a Roman temple; the upper is dominated by a large Doric temple to Asklepios. The combination of ruins, views, and medical history makes this more interesting than a standard Greek ruin site.

Entry: Approximately €8 as of 2026. Check current prices and opening hours at odysseus.culture.gr. Open daily except Monday.

Getting there: 4km from Kos Town by road. Bicycle is the best option — flat terrain the whole way. Taxis and minibuses also available.

Allow: 1–1.5 hours for the site.

Kos Town

The main town is better than the package-holiday reputation suggests. The Castle of the Knights of St John (14th–16th century) dominates the harbour entrance and is well-preserved, with solid walls and good views from the battlements. The Archaeological Museum in Eleftherias Square has finds from across the island including an excellent Hellenistic-period statue of Hippocrates. The ancient agora ruins spread across the centre of town, partially excavated and accessible for free.

The old neighbourhood of Platanos, around the Hippocrates Plane Tree (an enormous ancient plane tree under which Hippocrates allegedly taught medicine — the tree is old but not that old), is pleasant to walk through in the morning. The harbour front has the usual tourist restaurant strip; the better eating is a few streets back in the residential areas.

Castle of the Knights entry: Approximately €8 as of 2026.

Archaeological Museum: Approximately €6 as of 2026.

Cycling the Island

Kos is the flattest major Greek island — a long, narrow strip of land with the northern plain essentially sea-level all the way from Kos Town west to Kefalos. A maintained cycling path runs along this coast for approximately 20km and is well-used by visitors and locals.

Options range from a short spin from Kos Town to Lambi beach (3km each way, flat, easy) to a full-day ride from Kos Town to Tigaki, Marmari, and back (35–40km round trip, manageable for moderate fitness). The island has dedicated bike paths in sections; other parts use quiet roads. The southern end of the island becomes hillier — the roads to Kefalos are pleasant but steeper.

Bike hire: Multiple operators in Kos Town rent basic bikes for approximately €5–€10 per day, mountain bikes for €10–€15, and electric bikes for €15–€25. Check tyre condition and brakes before taking any rental bike.

Day Trip to Bodrum, Turkey

A 30–45 minute ferry crossing from Kos harbour (depending on boat type) takes you to Bodrum, one of Turkey’s most popular resort towns. Day trips are run by several operators from the Kos harbour front. You pass through Turkish immigration and customs — a valid passport is required. Some nationalities need a Turkish e-Visa arranged in advance (available at evisa.gov.tr for eligible nationalities); check requirements for your passport before going.

Bodrum’s old town and the Castle of St Peter (a Crusader fortress housing the Museum of Underwater Archaeology) are the main sights. The bazaar has the usual tourist goods alongside genuine Turkish ceramics and textiles. Turkish food — grilled kebabs, pide, mezes — is excellent and cheaper than equivalent meals in Kos Town.

Operators: Multiple ferry companies offer day trip tickets from Kos port. Prices vary — approximately €25–€40 return as of 2026 including port fees. Book a day ahead in peak season.

Day Trip to Nisyros (Volcanic Island)

Nisyros is a small volcanic island 20km south of Kos, one of the very few active volcanoes in Greece. The caldera crater in the centre of the island is accessible and genuinely dramatic — you walk down into it and stand on a surface of sulphur-crusted rock with fumaroles venting steam. The surrounding villages (Mandraki, Nikia) are photogenic and uncrowded.

Day trips by caique or organised tour from Kos Town run regularly in summer, approximately €25–€35 per person as of 2026. The journey takes about 1 hour each way. Organised tours typically include the volcano visit, a walk through Mandraki village, and swimming time.

Independent travel: You can also take the public ferry from Kos to Nisyros (slower, less frequent than tour boats) and explore independently. This gives more time at the volcano and in the villages. Check Blue Star Ferries and Dodekanisos Seaways schedules.

Tigaki and the Salt Lake

Tigaki beach, 12km west of Kos Town along the north coast cycle path, has one of the widest stretches of sand on the island — shallow water, families, and a laid-back atmosphere. Behind the beach, the Alikes salt lake attracts flamingos in spring and autumn (typically February–April and September–October) when the lake has enough water. The flamingo sightings are not guaranteed but are a legitimate wildlife highlight if your timing is right.

Kefalos and the South Coast

The south-west peninsula of Kos, around Kefalos village, is hillier and quieter than the north coast. The beaches here (Kamari, Agios Stefanos, Paradise) are among the most scenic on the island — clear water, fewer people than the north coast, and the old ruins of a 5th-century Byzantine basilica on the headland at Agios Stefanos with two small islets just offshore.

Getting there: By bus from Kos Town (45–60 minutes, KTEL buses run regularly in summer) or by scooter.

Practical Notes

Getting around: The flat terrain makes Kos the best island in Greece for cycling. Buses (KTEL Kos) connect Kos Town with the main resorts and south coast. Scooter hire is available from multiple operators in Kos Town (approximately €20–€30/day). Taxis are metered.

Accommodation base: Kos Town gives access to history, restaurants, and the cycling paths. Kardamena (south coast) and Tigaki are resort-focused with beach convenience.

Meltemi: The north coast beaches face the full force of the summer meltemi in July–August. The south-facing beaches (Kefalos, Kamari) are sheltered and calmer in strong wind conditions.

Currency: Turkey uses the Turkish Lira, not euros. Bring some cash for the Bodrum trip; card acceptance has improved but cash is useful in the bazaar.


For the complete Kos island guide including where to stay and how to get here, see our Kos travel guide. For beaches from Tigaki to the south coast coves, see best beaches in Kos. For restaurants in Kos Town and the resort areas, see best restaurants in Kos. Nearby in the Dodecanese? See our Rhodes travel guide for Greece’s largest Dodecanese island.

Book Kos tours and excursions with GetYourGuide. Pick up a Greece eSIM before you fly — keeps you connected without roaming charges.

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Frequently Asked Questions

Is Kos good for cycling?
Yes — Kos is the flattest major island in the Dodecanese, which makes cycling unusually practical. Kos Town and the northern coastal plain are flat enough for all fitness levels. A well-maintained cycling path runs from Kos Town west along the coast. Bikes rent for approximately €5–€10 per day in town.
Can I do a day trip from Kos to Bodrum in Turkey?
Yes — regular ferries run between Kos harbour and Bodrum, Turkey (approximately 30–45 minutes crossing). Day trips are common in summer. You need a valid passport; check current visa requirements for Turkey for your nationality before travelling. Some nationalities can purchase an e-Visa at the border; others need to arrange in advance.
Is the Asklepion in Kos worth visiting?
Yes, particularly for those interested in ancient history. It is one of the best-preserved ancient healing sanctuaries in the Mediterranean and the association with Hippocrates (considered the father of medicine, who was born on Kos around 460 BC) gives it genuine historical significance. Entry is approximately €8 as of 2026; check current prices at odysseus.culture.gr.