BOAT-COMPARATOR Guide

Renting a boat in Halkidiki: Sithonia, Kassandra and the Mount Athos maritime exclusion zone

Sithonia and Kassandra, the two Greek peninsulas where you can rent a boat without a licence less than an hour from Thessaloniki, and the 500-metre rule that protects neighbouring Mount Athos.

Seen from above, Halkidiki looks like a hand stretched out into the Aegean Sea, south-east of Thessaloniki. Three peninsulas — three "fingers" — reach out from the same mainland stem: Kassandra to the west, Sithonia in the middle, and Mount Athos to the east, an autonomous monastic republic that no boat may approach. It's an unusual geography, one that lets you rent a boat without ever losing sight of the coast, an hour's drive from an international airport — a very different profile from the classic Greek islands, and one worth a closer look.

Kassandra, the most accessible peninsula

Kassandra is the closest to Thessaloniki and the most built-up of the three, with the resort towns of Kallithea, Pefkochori and Possidi and fine-sand beaches that get busy in July and August. Sani marina in the north-west and the port of Nea Moudania, on the mainland just opposite, hold most of the rental fleet: RIBs and small licence-free motorboats for the day, plus a handful of sailboats and catamarans for the short crossing to Sithonia. It's the most convenient starting point for a first taste of the region, with generally sheltered water on the Kassandra gulf side.

Sithonia, the wilder peninsula

Sithonia, the middle peninsula, changes the scenery markedly: pink granite cliffs, pine forest running down to the water, and a coastline far less developed than Kassandra. The large Porto Carras marina near Neos Marmaras and the small Nikiti base are the two main launch points on the west side. But the most sought-after spot is Vourvourou on the east coast: a cluster of around ten granite islets enclosing Diaporos island, with turquoise coves reachable only by boat, and manageable even without a licence for a cautious skipper. Our guide to watching dolphins and turtles from a boat is useful here too: the calm, shallow water around Diaporos is a good spot to spot loggerhead turtles and occasionally dolphins, without ever getting too close.

Mount Athos, a third finger you can only skirt

No account of Halkidiki is complete without its most singular third finger: Mount Athos, an autonomous monastic republic under Greek state protection for over a thousand years, home to about twenty Orthodox communities. Setting foot there is forbidden to any woman (the "avaton", a rule still in force today), and reserved for men holding a special permit (the diamonitirion), issued in limited numbers. For a rental boat, the rule is simple and non-negotiable: Greek law imposes a 500-metre maritime exclusion zone off the Mount Athos coast, which only a handful of authorised boats may cross to supply the monasteries. Nothing, however, stops you from skirting that line offshore to admire the monasteries clinging to the cliffside from the deck — a classic day trip from Ouranoupoli, just across the water, often offered alongside a rental on Sithonia.

Aristotle, a local

This unusual landscape also has a little-known scientific history: Aristotle was born in 384 BC in Stagira, on Halkidiki's north-east coast, facing the gulf that leads to Mount Athos. It was later, on the island of Lesbos, that he carried out his most thorough observations of marine life — but the sheer scale of that work, often overshadowed by his philosophical writings, is striking: a landmark study catalogued nearly 900 mentions of animals now classified as marine invertebrates across his zoological works, matching 85 identifiable modern taxa, most down to species level (Voultsiadou & Vafidis, Marine invertebrate diversity in Aristotle's zoology, Contributions to Zoology, 2007, see the study on Google Scholar). Worth a thought next time you spot an octopus or a sea urchin snorkelling off Sithonia.

Licence-free: the same 30 hp rule as everywhere in Greece

As everywhere in Greece, you can pilot a motorboat yourself up to 30 hp without a licence, by day and within a zone set by the rental operator under the local port authority's oversight — our guide to licence-free boat rental covers the principle, and our article on going licence-free in the Cyclades describes the same rule applied to more exposed islands. In Halkidiki the advantage is clear: the Kassandra and Sithonia gulfs are statistically more sheltered than the open Aegean, making it a gentler environment for a first-time crew.

When to sail

The useful season runs from June to September, peaking in July and August. The region largely escapes the meltemi that sweeps the Cyclades further south — our guide to Mediterranean winds explains why this thermal north wind loses strength further up the Aegean. In Halkidiki it's more often the vardaris, a katabatic wind blowing down from the Balkans, that can gust in shorter but sometimes sharper spells, mostly in late spring; afternoon thermal breezes remain the more common pattern in high summer.

Budget and comparison

Expect around €100 to €200 a day for a licence-free RIB out of Vourvourou or Nea Moudania, and noticeably more for a sailboat or catamaran out of Porto Carras. Thessaloniki airport, under an hour from the Kassandra bases and a little more for Sithonia, makes the region an easy reach from all over northern Europe and the Balkans. Boat-Comparator queries SamBoat and Click&Boat in a single search to compare the boats actually available in Halkidiki for your dates — our platform comparison helps sort through the options before you book.

Compare the platforms now →

Also worth reading

• How much does it cost to rent a boat in 2026? Real prices
• License-Free Boat Rental in France: Rules, Prices & Where to Book
• Renting with or without a skipper: how to choose