Our compilation for Zonguldak, not an official route.
Two records describe what is very probably the same cave system at Ereğli: one plural, one singular. We have not merged them, but expect one place.
The list runs along the coast — the Karadeniz Ereğli museum and the caves beside it, Ilıksu beach, the Harmankaya waterfalls, the Danaağzı nature park, the Gökgöl cave and the mining museum — with the Gümeli natural monument inland. A nature park of the same Harmankaya name exists in Yalova and is a different place.
What each place is, and who says so, is on its own page.
