Halkidiki's waters offer 15-30 metre visibility, warm temperatures (22-27°C, June to October), and diverse underwater landscapes: rocky formations, caves, shipwrecks, and rich marine life including octopus, moray eels, groupers, and colourful reef fish.
Most centres offer PADI certifications (Open Water, Advanced Open Water, Rescue Diver) taught in English, Greek, and often German or Russian.
| Site | Depth | Highlights |
|---|---|---|
| Sithonia Sea Caves | 10-25m | Underwater caves with stalactites, swim-throughs |
| Porto Koufo Shipwreck | 18-30m | Wooden shipwreck colonised by marine life |
| Ouranoupoli Reef Walls | 12-35m | Vertical walls, octopus, sponges, sea fans |
| Kavourotrypes Arches | 5-15m | Natural rock arches, ideal for beginners |
Summer (June–September) for beaches and swimming. July–August is peak. May, early June, or September give great weather with fewer crowds and 30–50% lower prices.
Fly to Thessaloniki (SKG), then 1–2 hours by car. Car rental from ~€25/day. Alternatively bus (KTEL Halkidiki), but schedules are limited. Detailed routes in /from guides.
Kassandra: lively, family-friendly, more touristy. Sithonia: quieter, more exotic, better nature. Athos: remote, ideal for tranquility. Browse /listings — book directly with owners, no booking fees.
Highly recommended. Beaches and villages are spread out, buses are sparse. If you skip the car, pick accommodation near a popular resort (Kallithea, Hanioti, Nikiti) with restaurants and beaches in walking distance.