Kos Greece Travel Guide

Kos is the third-largest island in the Dodecanese group, situated in the southeastern Aegean Sea close to the Turkish coast. It is best known for two contrasting attractions: a well-preserved ancient and medieval heritage, and a long ribbon of sandy beaches that draw visitors from across Europe every summer.

The island's capital, also called Kos Town, combines a functioning modern port with layers of history — Hellenistic streets, Roman ruins, a Knights Hospitaller castle, and an Ottoman mosque all sit within walking distance of each other. Outside the capital, the landscape moves between flat agricultural plains in the east and rugged hills in the west, giving the island more geographic variety than first-time visitors often expect.

Kos has a reputation as a lively, accessible island. Its flat terrain makes cycling one of the most practical and pleasant ways to get around, and a relatively good network of local buses connects the main resorts and villages. The island is large enough to reward a week's exploration but compact enough not to feel overwhelming.

Visas

Kos is part of Greece, a member of the European Union and the Schengen Area. Visa requirements depend on your nationality and can change. Check TravelerPulse's Visas section and the official website of the Greek Ministry of Foreign Affairs or your nearest Greek embassy before travelling.

When to go

• May–June: Long daylight hours, warm sea temperatures, and significantly thinner crowds than peak summer. Most tourist facilities are open.
• July–August: Peak season. Very hot (often above 35 °C / 95 °F), beaches are busy, and accommodation prices are at their highest. Book well in advance.
• September–October: The Aegean remains warm enough to swim, crowds thin noticeably, and prices drop. A strong choice for sightseeing.
• November–April: Many resorts close. Kos Town remains open year-round but with limited tourist services. Useful mainly for those interested in archaeology or off-season quiet.

Health

No vaccinations are required beyond standard travel recommendations for Europe. Tap water is generally considered safe in Kos Town, but bottled water is widely available. The island has a hospital in Kos Town — verify its current location and hours locally or via the Greek National Health System website before you go.

What to pack

Sunscreen with high SPF is essential in summer. A light jacket is useful for cool evenings in spring and autumn. Comfortable walking shoes are worthwhile for exploring ruins on uneven ground.

By air

Kos Island International Airport 'Hippocrates' (IATA: KGS) is located on the northeastern coast of the island, roughly 26 km from Kos Town. It handles direct flights from many European cities, particularly during the April–October season. Year-round scheduled services tend to operate via Athens (Athens International Airport, ATH). Verify current routes and schedules with airlines or a licensed booking platform before travel.

By ferry

Kos is well connected by regular ferry and high-speed catamaran services to Athens (Piraeus port), Rhodes, Bodrum (Turkey), and other Dodecanese islands including Patmos, Leros, and Kalymnos. Journey times and frequencies vary significantly by season. Check current schedules and book through the ferry operators or a verified ticketing agent.

From the airport

Local taxis and some hotel transfer services operate from the airport. A local bus route also connects the airport area to Kos Town, though service frequency should be verified locally. Confirm options in advance, especially for early morning or late-night arrivals.

Cycling

Kos Town and the flat northeastern coast have a network of dedicated cycle paths, and bicycle rental is widely available in and around the capital. This is genuinely one of the most practical ways to reach nearby beaches, villages, and the Asklepion. Rental terms and prices vary by provider — negotiate or compare before committing.

Local buses (KTEL Kos)

Public buses operated by KTEL connect Kos Town with major resorts and villages such as Tigaki, Marmari, Mastichari, Kardamena, and Kefalos. Schedules are seasonal and reduced in winter. Verify current timetables at the KTEL bus station in Kos Town or on the operator's official channels.

Taxis

Taxis are available in Kos Town and at the main resorts. They are metered for most journeys; for longer trips across the island, agree on the fare beforehand.

Car and scooter rental

Renting a car or scooter is the most flexible way to reach the island's western and hillside areas. Numerous rental agencies operate near the port and airport. Carry a valid driving licence appropriate for the vehicle category. Roads in rural areas can be narrow and poorly lit.

Ferry connections

Small passenger ferries and excursion boats link Kos Town to the Turkish city of Bodrum and to nearby islets such as Nisyros, often as day trips. Verify departure points and current permissions for cross-border travel well in advance.

Accommodation on Kos ranges from large all-inclusive resort complexes concentrated along the northeastern coast (particularly around Tigaki, Marmari, and Lambi) to smaller family-run hotels and apartments in Kos Town itself. Budget guesthouses and hostels are available in the capital for independent travellers.

Kos Town is the most practical base for travellers interested in history and dining variety. Resort areas such as Kardamena in the south and Kefalos in the southwest offer a beach-focused experience with a more self-contained feel. Mastichari, near the ferry port to Kalymnos, suits those planning inter-island hopping.

Book accommodation several months in advance for July and August travel, particularly if you want a central location in Kos Town. Verify cancellation policies carefully, as peak-season terms can be restrictive. Prices and availability shift significantly between high season and shoulder season — the difference can be substantial.

Kos Town

The old town is compact and walkable. Key sites include the Castle of the Knights (Neratzia Castle), a well-preserved Hospitaller fortification at the harbour entrance; the Ancient Agora ruins adjacent to the castle; and the Plane Tree of Hippocrates, a large oriental plane tree traditionally associated with the ancient physician, though its true age is debated. The Archaeological Museum of Kos on Eleftherias Square holds Hellenistic and Roman finds from across the island — verify current opening hours and admission fees on arrival or via the Greek Ministry of Culture website.

Asklepion

Located about 4 km from Kos Town, the Asklepion was an ancient sanctuary and centre of healing associated with the cult of Asclepius and, by tradition, with Hippocrates himself. The terraced site offers some of the best-preserved examples of ancient Greek medical sanctuary architecture, along with views toward the Turkish coast on clear days. It is one of the most significant archaeological sites in Greece. Verify opening hours and fees locally before visiting.

Beaches

• Tigaki and Marmari: Long sandy beaches on the northern coast, easily accessible by bike or bus.
• Paradise Beach (Bubble Beach): On the south coast near Kardamena, known for volcanic underwater activity.
• Kefalos Bay: A quieter stretch of beaches in the southwest, considered among the island's most scenic.
• Psalidi: Close to Kos Town, popular with windsurfers.

Day trips

Nisyros, a volcanic island with an active caldera, is reachable by day-trip boat from Kos Town or Kefalos. The town of Bodrum in Turkey is a short ferry crossing and requires a valid passport — verify current entry requirements in advance. The small islands of Kalymnos (known for rock climbing and sponge diving heritage) and Patmos are also accessible by ferry.

Greek cuisine is the backbone of dining on Kos. Expect fresh seafood, grilled meats, mezedes (small shared dishes), and locally grown vegetables. Tavernas along the harbour and in the back streets of Kos Town offer the most authentic experience; restaurants directly on the main tourist strips can be more generic and more expensive.

Look for dishes typical of the Dodecanese: fresh grilled octopus, fried courgette fritters, local cheese varieties, and pitarakia (small cheese-filled pies). Fresh fish is best ordered at smaller harbour-side establishments where you can often see the day's catch. Prices for fish are sometimes listed by weight — confirm the total before ordering.

The island produces some local wine and honey. Greek coffee (prepared in the traditional style) and freddo espresso (iced espresso) are popular at cafés. Ouzo and tsipouro are the traditional spirits most commonly offered alongside mezedes.

Water, soft drinks, and beer are available everywhere. Always check whether water served at a table is charged for, as this varies by establishment. Tipping is not mandatory but leaving small change or rounding up the bill is customary and appreciated.

Emergency contacts

The pan-European emergency number 112 works across Greece and is the most reliable number to call for police, fire, or medical emergencies. Greece also maintains separate national numbers for police (100), fire (199), and ambulance (166) — verify these are current before travel via official Greek government sources.

Money

ATMs are available in Kos Town and larger resort areas. Inform your bank of travel plans before departure. Credit cards are accepted at most hotels and mid-range restaurants, but smaller tavernas and local shops may be cash-only. Currency exchange offices operate near the port.

Connectivity

Free Wi-Fi is widely available at hotels, cafés, and restaurants. EU citizens benefit from roaming rules within Greece. Visitors from outside the EU should verify roaming costs with their provider or consider a local SIM card, available at phone shops in Kos Town.

Electricity

Greece uses the Type C and Type F plug standard at 230V / 50Hz. Travellers from the UK, US, or Australia will need a plug adapter.

Postal services

Kos Town has a post office (Hellenic Post / ELTA). Hours are typically weekday daytime only — verify locally.

Kos is generally considered a safe destination for tourists. Petty theft such as pickpocketing can occur in crowded areas, at the beach, and on public transport — keep valuables secure and avoid leaving bags unattended. Moped and scooter accidents are a recurring issue; wear a helmet, choose reputable rental providers, and do not ride if you are not confident or if you have consumed alcohol.

Sea safety is important. Check local conditions before swimming, particularly on south-facing beaches which can have stronger currents. Jellyfish appear periodically — local beach attendants or signage will usually indicate if there is a significant presence. Always swim at beaches with lifeguard cover where possible.

Heat exhaustion and sunburn are real risks in July and August. Drink water regularly, avoid prolonged sun exposure in the midday hours, and use high-factor sunscreen. Travellers with pre-existing health conditions should consult their doctor before travelling and carry adequate medication.

For travel insurance, ensure your policy covers medical treatment and repatriation. Verify current Foreign Office or State Department travel advisories for Greece before departure.

Kos has been shaped by an unusually layered history. Ancient Greek, Roman, Byzantine, Knights Hospitaller, Ottoman, and Italian colonial periods have all left visible marks on the island's architecture and culture. This mix is visible throughout Kos Town, where a Byzantine church, an Ottoman mosque, and Italian-era administrative buildings can sit on the same block.

Greek Orthodox Christianity is the dominant religion and remains an important part of daily and civic life. Church festivals and name-day celebrations are genuine community events. If visiting a church, dress modestly — shoulders and knees should be covered.

Local customs around dining are relaxed but unhurried. Meals in Greece are a social activity; rushing a table or asking for the bill very early can be seen as abrupt. Lunch is typically served from around 1pm and dinner rarely starts before 8pm, with many Greeks eating later than that.

Greek is the language of daily life. Making a small effort with basic greetings — kalimera (good morning), efharisto (thank you), parakalo (please / you're welcome) — is well received and generally appreciated by locals.