Lake Küçükboğaz (Karasu)

Photo: Acar54 · CC BY 2.5

Nature

Lake Küçükboğaz (Karasu)

A small lake ringed with reeds near the coast between Karasu and Kocaali; for a quiet break and angling.

From the centre: 36 km · about 40 minBest time: Spring and autumnGet directions

Lake Küçükboğaz is a lake surrounded by reeds and small groves in Sakarya's Karasu district, near the coast towards Kocaali. It's about 40 minutes west of Akçakoca, past Melenağzı and Kocaali.

Sakarya Metropolitan Municipality lists the lake, together with Acarlar Longoz and Maden Stream, among the natural beauties of the Karasu coast. It's a quiet spot visited by anglers.

We couldn't verify whether there is an organised visitor area around the lake. It's good for a short stop on the way to Acarlar Longoz.

Before you go

You'll find this place in our itineraries

Keep exploring Akçakoca

Nearby

The closest places as the crow flies; you can visit them on the same day.

Maden Stream Waterfall (Karasu)
Nature

Maden Stream Waterfall (Karasu)

A waterfall in the forest, reached on foot along the streambed and past mine tunnels from the late Ottoman period.

9.8 km away
Melen River
Nature

Melen River

A 110 km river forming the border between Düzce and Sakarya; its mouth is in Akçakoca.

18.9 km away
Melenağzı Beach
Beach

Melenağzı Beach

A natural beach at the district's western end, where the Melen River flows into the Black Sea.

19 km away
Acarlar Longoz (Karasu)
Nature

Acarlar Longoz (Karasu)

Turkey's largest continuous longoz (floodplain) forest: a lake, water lilies, a wooden boardwalk and migratory birds.

21.5 km away

How to get to Akçakoca

  • Istanbul (Kadıköy)223 km · ~2.5–3 h
  • Ankara (Kızılay)273 km · ~3 h
  • Düzce city centre37 km · ~35 min
  • From Akçakoca centre to here36 km · about 40 min

By car, take the TEM or D100 to the Düzce exit and drive about 37 km north; you can also come along the coast road (D010) via Ereğli or Karasu. Many bus companies run direct services to Akçakoca; there is no train.

Transport details →
Last checked: October 2026Is something on this page wrong or out of date? Let us know