Chalkidiki Travel Guide: Kassandra, Sithonia and Mount Athos

Chalkidiki (Χαλκιδική) is the region of northern Greece that spreads south-east of Thessaloniki into the Aegean in the shape of a hand with three fingers. People often write it "Halkidiki" or "Chalkidike"; all mean the same place. For a first trip, the real decision is which of the three fingers suits you. This guide compares them, explains how far things are, and points you to the detailed articles for each part. We write it from Sarti, on the east coast of Sithonia, so the distances are measured from there.

Chalkidiki at a glance

Chalkidiki is a regional unit of Central Macedonia. Its capital is Polygyros (Πολύγυρος), a hill town of 7,779 people at 560 m elevation, which holds an archaeological museum with finds from across the region, from the Paleolithic to the Roman period. The largest town is Nea Moudania (Νέα Μουδανιά).

The regional unit covers 2,918 km² and had 102,085 residents at the 2021 census, down 3.6% from 105,908 in 2011. Mount Athos is recorded separately and added another 1,746 people. For official purposes, the Hellenic Statistical Authority publishes the full figures.

There are five municipalities: Aristotelis, Kassandra, Nea Propontida, Polygyros and Sithonia. Tourism has been popular here since the late 1950s, with a boom in the 1970s.

The three peninsulas

Going from west to east, the fingers are Kassandra, Sithonia and Athos.

Kassandra

Kassandra has a highest peak of 350 m and is the most developed and cosmopolitan of the three. It is known for nightlife and for many beautiful but crowded beaches. Its municipality had 16,861 residents in 2021, and its seat is Kassandreia. Tourism replaced agriculture as the main industry in the 1980s, and the east coast from Kallithea to Pefkochori is heavily built up with resorts.

There is a curious bit of geography at its neck. The Potidea isthmus was widened into a canal under Cassander, sometime between the 4th and 1st centuries BC, which makes Kassandra an "artificial island". Our Kassandra guide goes into more detail.

Sithonia

Sithonia is the middle finger, less developed and known for pristine nature and beaches. Its highest point is Mount Itamos at 817 m. The municipality had 12,080 residents in 2021, and its seat is Nikiti. The main villages are Nikiti, Neos Marmaras, Parthenonas, Sarti, Sykia, Vourvourou and Agios Nikolaos. Porto Koufo is often called the largest natural harbour in Greece.

This is where we live and work, so we have written two companion pieces: our complete guide to Sarti and a complete guide to Sithonia. Sarti is on the east coast, at about 40.098 N, 23.979 E.

Athos

Athos is the easternmost finger and has a different character altogether. Its highest peak is 2,033 m, and it is an autonomous monastic region rather than an ordinary holiday area. It is covered in its own section below.

Where to base yourself

The best base depends on what you want from the trip.

• Kassandra resorts. Kallithea, Chanioti and Pefkochori are among the main beach and resort areas on this finger. If you want nightlife and a developed resort scene, Kassandra is where to look.
• Sithonia villages. Nikiti, Neos Marmaras (with the Porto Carras resort), Sarti and Sykia, plus smaller places such as Vourvourou, give you a quieter and more spread-out coast.
• Ouranoupoli. This is the gateway to Athos on the mainland, with a population of 801 in 2021, and one of the two starting ports for sightseeing boats along the Athos coast, the other being Ormos Panagias on Sithonia. See our Ouranoupoli guide for the town itself.
• Northern Chalkidiki. The eastern-side beaches are popular in summer and the mountain villages are attractive in winter. Arnaia is a popular winter village.
• Ammouliani. An island near Athos with beach bars and sun beds.

Yerakini (Gerakina) and Psakoudia are also among the region's beach and resort areas. Note that Psakoudia is not in Sithonia.

Beaches overview

Chalkidiki's beaches are what most people come for, and the range is wide: many beautiful but crowded beaches in Kassandra, and pristine beaches in less developed Sithonia. Picking a "best" beach is a matter of taste, so we keep the overview qualitative here.

Chalkidiki had 93 Blue Flag entries on the official lists for both 2025 and 2026. Entries are sections of beach, not always separate beaches, so the number of distinct beaches is lower. Check the official Blue Flag list for the year you travel if it matters to you, or see our guide to Blue Flag beaches in Sithonia and Chalkidiki.

For concrete ideas, start with our article on the best beaches near Sarti and our look at the best beaches of Sithonia. For the wider region, see the best beaches of Chalkidiki and the best beaches of Kassandra.

Mount Athos in brief

Mount Athos is a self-governed monastic state within Greece. Entry on land is limited to men with a permit, there are 20 monasteries, and it is a UNESCO World Heritage Site, listed as a mixed site since 1988.

The good news for everyone else is that boat cruises from Ouranoupoli and Ormos Panagias sail along the west coast and show some of the monasteries from the sea, and they are open to all. Women cannot land on Athos, but the sightseeing boats stay offshore. Read our full article on Mount Athos and the Athos peninsula for the rules, and our piece on the Mount Athos cruise from Ormos Panagias for what the boat trip is like from the Sithonia side.

A little history

Chalkidiki's history is deeper than its beach reputation suggests, and three places are worth knowing about.

Olynthos

Olynthos (Όλυνθος) was a major city that led the Chalcidian League. Philip II of Macedon destroyed it in 348 BCE. It was excavated from 1928 by David Moore Robinson and shows a Hippodamian street grid, with 108 excavated buildings on the North Hill and a floor mosaic of Bellerophon.

Stagira

Stagira (Στάγειρα) was founded by Ionian settlers from Andros in 655 BC and is known as the birthplace of Aristotle. Philip II destroyed it in the same year as Olynthos. The site is open to the public and lies by Olympiada; follow the signs from the village.

Petralona Cave

The Petralona Cave (Σπήλαιο Πετραλώνων) was discovered in 1959, and a skull was found in 1960. Dating is still debated: the more reliable methods give roughly 150,000 to 250,000 years, though one 1981 estimate said about 700,000. The cave reopened to visitors in February 2024 after renovation. Opening hours and ticket prices can change, so check the cave's official site.

Getting there and around

Chalkidiki has no railway and no airport of its own, so the nearest airport is Thessaloniki "Makedonia" (formerly Mikra), about 13 km south-east of the city in Thermi. It served 7,982,798 passengers in 2025.

The A24 motorway links Thessaloniki and the airport with Nea Moudania and Kallithea in Kassandra. It is the preferred route to Kassandra and Sithonia but gets congested on summer weekends.

Driving distances from Sarti, assuming a clear road:

Be realistic about the first line. Sarti is about two hours from the airport in good conditions, much further than Kassandra's resorts. As a general figure, Thessaloniki to Toroni is 1.5 to 2 hours by car and about 3 hours by bus. Our guide on how to get to Sarti from Thessaloniki goes through the options in detail.

On the ground, a car is the easiest way to get around. Roads are mostly rural but in acceptable condition, and parking is usually free and informal. KTEL Chalkidikis (opens in a new tab) runs routes within the region, but departures are limited, buses can run late and there are no direct routes between Kassandra and Sithonia. In autumn 2026 its online ticketing showed three buses a day each way between Thessaloniki and Sarti, with a full one-way fare of EUR 22.00. The summer schedule differs, so check the official site before you plan around the bus.

When to go

Conditions vary from one peninsula to the next, so it is best to look at the area you are visiting. As a rule, summer is the busiest period and the A24 can be congested on weekends. For Sithonia in particular, our guide to Sithonia has more on the seasons, and in the villages many businesses open only for the season, so plan accordingly if you come early or late in the year.

Where to stay in Sithonia

If you decide on the quieter middle finger, Sarti Thea Boutique Rooms is our home in Achlada, on the hill above Sarti harbour, with free parking on site and a view over the whole bay. You can see our rooms and check dates on the booking page.

Practical info

• Airport: Thessaloniki "Makedonia", about 130 km from Sarti, roughly two hours by car.
• Main road: the A24 motorway towards Nea Moudania; expect congestion on summer weekends.
• Getting around: a car is the easiest option; KTEL buses exist (three a day to Sarti in autumn 2026) but are limited.
• Parking: usually free and informal.
• Athos: men need a permit to land; sightseeing boats are open to all.
• To check before travelling: the KTEL summer timetable, Blue Flag lists, and opening hours for sites such as Petralona Cave.
• Next reads: our Sarti guide and how to get to Sarti from Thessaloniki.