Kos travel guide
The Asklepieion, Neratzia Castle and fast boats to Bodrum
Kos is a Dodecanese island off the Turkish coast with long sandy beaches, a town full of open-air ruins and the Asklepieion, the healing sanctuary tied to Hippocrates. Visit from May to June or September to October. Allow four to seven days, with a hop to Nisyros or Bodrum. Prices are high, and many passports get 90 days under Schengen rules.
Close enough to Turkey that Bodrum is 25 minutes away by fast boat, Kos is the third largest of the Dodecanese and, after Rhodes, the most visited. The island is long and narrow, with sandy beaches on most of its coast and a main town where ancient ruins lie open between the modern streets.
Hippocrates was born on the island, and his presence is everywhere. On a terraced hillside outside town, the Asklepieion was a healing sanctuary and medical school built around a temple of the god of medicine. In Kos town, the Archaeological Museum holds a statue of Hippocrates and a floor mosaic from the Casa Romana, a restored Roman mansion you can also visit.
The town itself is a jumble of eras. Excavated after an earthquake in 1933, the Ancient Agora spreads beside the harbour, the Roman Odeon stands a few minutes' walk away, and the Knights of Saint John built Neratzia Castle to guard the port. Flat streets and cycle lanes make a rented bike the easiest way around.
Beach choice comes down to wind and company. Tigaki and Marmari on the north coast are long and sandy but catch the summer wind, which kitesurfers love. For quiet, try Agios Fokas with its dark sand, or the hot springs at Therma, where warm water runs into the sea. Kefalos Bay in the far west has a string of good beaches, Camel Beach and Polemi among them.
Mastichari, a village near the airport on the northwest coast, has a sandy main beach and boats to Kalymnos about every two hours. In summer, boats for the volcanic island of Nisyros leave from Kardamena on the south coast. Up in the hills, Zia is the place for sunset over the sea, with a watermill taverna among its lanes.
Getting around is easy. Airport buses head both to Kos town via Mastichari and west to Kefalos, while taxis are quick but carry a stiff minimum fare even for short hops. Scooter rental gets cheaper by the day the longer you keep one, and Kefalos is about 40 minutes from Kos town by car.
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Top things to do in Kos
Hippocrates' sanctuary, a Knights' castle, Roman houses, hot springs and plenty of sand.
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Best time to visit Kos
Month by month, so you can pick the weather and the crowds you want.
Highs of 25 to 29C and barely any rain, with the sea warm enough from June for long swims.
Highs around 30 to 31C and, on average, no rain at all; the north coast turns windy, which suits kitesurfers more than swimmers.
December and January bring roughly 176 to 215 mm of rain; many hotels close and boat links thin out.
Catamarans to Bodrum run all year, with more sailings in summer; carry your passport and check which Bodrum terminal your boat uses.
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Getting there
Airport buses, Piraeus ferries and Bodrum boats
Kos Hippocrates airport (KGS) sits inland near Antimachia, mid-island, with flights from Athens and summer charters from across Europe; KTEL buses leave the terminal for Kos town and the west. Ferries arrive from Piraeus and the Dodecanese, and boats cross from Bodrum. KTEL buses leave from the terminal in two directions: east to Kos town by way of Mastichari, and west to Kefalos. Taxis queue outside arrivals and are the only door-to-door option, though the minimum charge is steep even for the five-minute hop to Mastichari. By sea, the harbour in Kos town takes daily ferries from Piraeus as well as boats from Rhodes, Patmos and Leros. Kalymnos is linked several times a day, and Santorini and Syros a few times a week in season. From Turkey, small foot-passenger catamarans cross from Bodrum in about 25 minutes.
- Airport bus
- KTEL to Kos town via Mastichari, or west to Kefalos; times on the KOS KTEL timetable
- Airport taxi
- Door to door, with a high minimum charge even for nearby Mastichari
- From Piraeus
- Daily ferries into Kos town harbour, a long sailing from the mainland
- From Bodrum
- Foot-passenger catamarans all year, more often from May to October; about 25 minutes
- Some boats use Bodrum's cruise terminal, several kilometres south of the marina, so allow for a taxi on the Turkish side.
- Carry your passport for any Bodrum crossing; it is an international border with checks at both ends.
Where to stay
Kos Town, Tigaki, Mastichari or Kefalos
Stay in Kos town for the ruins, harbour bars and the Bodrum boats, or in a beach village such as Tigaki, Mastichari or Kefalos for days on the sand. Distances are short, but buses to the far west run only a few times a day, so check timetables before choosing.
- Kos town
- Ruins, harbour and bars, all easy by bike; the liveliest and noisiest base
- Tigaki and Marmari
- Long sandy north-coast beaches, good for kitesurfing but windy in high summer
- Mastichari
- Village beach near the airport, with boats to Kalymnos and a calmer feel
- Kefalos
- Quieter bays in the far west; best with your own wheels
Getting around
Bikes, KTEL buses and rental scooters
Cycle around Kos town and the flat north coast toward Tigaki and Marmari, where cycle lanes run through and around town and rental shops are everywhere. KTEL buses reach every corner of the island, though some routes run rarely, and scooters suit the hill villages. KTEL buses fan out from Kos town to every corner of the island, but some routes run only a few times a day, so check the KOS KTEL timetable before building a beach day around them. For the hill village of Zia or the far west around Kefalos, wheels of your own make life simpler. Roads are mostly asphalted and in good condition, and rental desks in every resort offer scooters, quad bikes and cars.
- Bicycle
- Cycle lanes in and around Kos town; the Asklepieion is a short ride out
- KTEL bus
- Island-wide routes from Kos town, thinner out of season
- Scooter or car
- Kos town to Kefalos in about 40 minutes
- Boat
- Mastichari to Kalymnos about every two hours; Kardamena to Nisyros daily in high season
- In July and August ride early or late: the flat stretch between the north-coast resorts has almost no shade.
Know before you go
What makes Kos worth the trip, and what catches visitors out.
Why travelers love it
- The Asklepieion, terraced on a hillside with views across to Turkey.
- The Casa Romana, a Roman house with its mosaics restored.
- Bathing at Therma, where hot spring water meets the sea.
- Sunset from Zia, high on the island's mountain slopes.
- A day trip to Bodrum by catamaran.
Good to know
- Airport taxis are pricey for short trips; check the bus timetable first.
- The north coast is windy in high summer, good for kitesurfers but choppy for swimmers.
- Some Bodrum boats land at the cruise terminal, several kilometres south of Bodrum marina.
- Many businesses close in winter, from November to April.
Trip fit
BookingMentor editorial ratings out of 5, based on a first-time visitor's experience.
Weather in Kos, month by month
Tap a month to see what to expect. Figures are long-term averages for Kos Sewage Plant weather station.
Climate figures are approximate long-term averages for Kos Sewage Plant weather station (http://penteli.meteo.gr/stations/kos/, via Wikipedia).
Cycling between the agora, Neratzia Castle and the Asklepieion
Rent a bike on your first morning in Kos town and ride the flat streets between the ruins: the Ancient Agora by the harbour, the walls of Neratzia Castle, built by the Knights of Saint John, and the Asklepieion, the healing sanctuary on the hill south-west of town. Ask locally whether the castle interior has reopened.
Start at the Ancient Agora by the harbour, walk round the walls of Neratzia Castle, built by the Knights of Saint John to guard the port (the interior was shut after the 2017 earthquake, so ask locally whether you can go in), then spend the late morning in the Archaeological Museum with the statue of Hippocrates and the Casa Romana mosaic. After lunch, see the Casa Romana itself and the Roman Odeon, both a few minutes apart, and finish with an evening walk along the harbour.
On day two, cycle or take the bus out to the Asklepieion early, before the heat builds, and climb its terraces for the view across the strait to Turkey. Spend the afternoon at Therma on the southeast coast, soaking in the pools where hot spring water spills into the sea. Late in the day, drive up to Zia on the mountain slopes for sunset and dinner, and come back down to town in the dark.
Pita gyros, krasotyri and village tavernas on Kos
The cheapest meal on Kos is a pita gyros from almost any snack bar in town. For dinner, Mummy's Cooking near Dolphin Square serves family dishes of the day, and in the hill villages tavernas offer krasotyri, the local cheese aged in wine, with grilled meats and island salads.
The cheapest meal on the island is the one locals grab between errands: a pita gyros, sold by almost every snack bar and taverna in Kos town. For a sit-down dinner, Mummy's Cooking on Bouboulinas, near Dolphin Square, is a family taverna where the son of the house steers you through the dishes of the day, and its moussaka is the reason many people come back.
Outside town the better tables are in the villages. Ampeli in Tigaki is a traditional taverna a short walk back from the beach, Lofaki sits at Agios Nektarios about 4 km south of town, and the Watermill of Zia pairs a mountain setting with the sunset crowd. Look out for krasotyri, the island's cheese matured in wine, and order fish where the boats land, at the little harbours of Mastichari and Kardamena. In the resort strips of Tigaki and Kardamena, menus lean towards British and German holiday food, so walk a street back from the beach before choosing.
Ferries from Kos to Kalymnos, Nisyros and Bodrum
Kos is a good hub. Small ferries from Mastichari reach Kalymnos about every two hours for a day around Pothia harbour, boats from Kardamena run to Nisyros and its steaming volcano crater in high season, and Bodrum in Turkey is a short crossing from Kos town; bring your passport.
Kos works well as a hub. From Mastichari, near the airport, small ferries leave for Kalymnos about every two hours; the sponge-diving island is close enough for a day of lunch and a walk round Pothia harbour. In high season, daily boats sail from Kardamena on the south coast to Nisyros, where you can walk down into the steaming crater of its volcano. Go early, as the crater floor gets hot by midday.
For Turkey, foot-passenger catamarans cross to Bodrum all year in about 25 minutes, so a day trip to the Castle of Saint Peter is easy either way. Some summer boats land at Bodrum's cruise terminal, several kilometres south of the marina. Carry your passport. Longer routes link Kos town daily with Rhodes, Patmos, Leros and Piraeus, and a few times a week with Santorini and Syros.
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How we research our Kos travel guide
For Kos we use the island's website and Visit Greece, and we check Neratzia Castle access after the 2017 earthquake repairs and the ferry links to Kalymnos, Nisyros and Bodrum each season.
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Checked against trusted sources:
Official website of KosVisit GreeceUNESCO World Heritage Centre
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Frequently Asked Questions (FAQs)
Quick answers to the questions travelers ask most before visiting Kos.
Getting there
Yes, the route to Kos town runs via Mastichari, and a second line heads west to Kefalos. Taxis are quicker, but their minimum fare is high even for very short trips.
Small ferries leave Mastichari, close to the airport, roughly every two hours, and Kalymnos is also linked from Kos town several times a day.
General
Yes. Foot-passenger catamarans cross in about 25 minutes all year, more often in summer. Bring your passport.
Yes. The town and the coast towards Tigaki and Marmari are flat, and lanes run through and around town, so a rented bike covers most short trips.
Tigaki and Marmari for long sand, Agios Fokas for dark sand and quiet, and the Kefalos Bay beaches in the far west.
An ancient healing sanctuary and medical school linked to Hippocrates, terraced on a hillside outside Kos town.
Yes, in high season. Daily boats leave Kardamena on the south coast, and the main draw is walking into the volcano's crater.
Kos town for the ruins, restaurants and boats; Tigaki or Marmari for long sandy beaches and kitesurfing; Mastichari for a quieter village near the airport.
Cycle around Kos town and the flat north coast toward Tigaki and Marmari, where cycle lanes run through and around town and rental shops are everywhere. KTEL buses reach every corner of the island, though some routes run rarely, and scooters suit the hill villages. KTEL buses fan out from Kos town to every corner of the island, but some routes run only a few times a day, so check the KOS KTEL timetable before building a beach day around them.
Timing & weather
May, June, September and October, with highs of 25 to 29C. July and August average 30 to 31C with no rain, and December and January are the wettest months.
The best time to visit Kos is May to Jun, Sep to Oct. Warm sea and comfortable cycling weather, without the summer wind and crowds.
- Best overall: May - June, September - October (Highs of 25 to 29C and barely any rain, with the sea warm enough from June for long swims)
- Summer: July - August (Highs around 30 to 31C and, on average, no rain at all; the north coast turns windy, which suits kitesurfers more than swimmers)
- Winter: November - April (December and January bring roughly 176 to 215 mm of rain; many hotels close and boat links thin out)
August is the warmest month in Kos, with average highs of 31°C, and January the coolest, with lows of 9°C. January is the wettest month, at about 215 mm of rain; July is the driest.
Stay & facilities
No. Crime against visitors is rare, and ordinary care with bags and rented scooters is enough.
Booking
Allow four to seven days, with a hop to Nisyros or Bodrum.
Visa & documents
Greece is part of the Schengen area. Citizens of the EU and of many other countries, including the US, UK, Canada and Australia, can visit visa-free for up to 90 days in any 180-day period; other nationalities need a Schengen visa. The EU's Entry/Exit System (EES) records non-EU travelers' fingerprints and a photo at the border.