Zonguldak is a Black Sea province in northwestern Turkey celebrated for its rich coal-mining heritage, dramatic coastal scenery, and lush forested hills. Carved out of Carboniferous rock over millennia, the region boasts the Gökgöl Cave — one of Turkey's largest and most spectacular stalactite caves — along with ancient ruins at Filyos (ancient Tios) and rugged Black Sea beaches. The provincial capital sits on a steep peninsula jutting into the Black Sea, giving it a distinctive character quite unlike Turkey's sun-belt resorts.
Zonguldak is accessible by air, road, and bus. The city has no train station — the nearest rail connections are in Çaycuma (a small freight/passenger stop) and Karabük. Zonguldak Airport (ONQ) in Çaycuma handles domestic flights to Istanbul. Long-distance buses are the most common intercity link. Within the province, a network of dolmuş (shared minibuses) connects the city centre to Kilimli, Kozlu, Ereğli, Çaycuma, Devrek, and Alaplı. Metered taxis fill gaps. No metro or tram system exists.
Transport tips
Travel smarter, not harder.
Zonguldak Otogar (main bus station) is in the city centre — easily walkable from most hotels
For Filyos ruins, take the bus to Çaycuma first (40 TRY from otogar), then a dolmuş to Filyos village
Rent a car from Zonguldak Airport if exploring the full province — Avis and local agencies operate at ONQ
Dolmuş to Ereğli depart when full, not on a fixed timetable; allow extra time
Night buses to Istanbul are good value; book 1–2 days ahead in summer