Acelle Yaylası is a highland pasture in the Akyazı district of Sakarya, about 1,200 metres above sea level.
Broadleaved and coniferous trees grow together around the pasture, with box, rhododendron, morels, chanterelles and bracket fungi among them.
The Enişte stream, which runs through the middle of the pasture, forms a natural lake in the central part. Called Büyükdeniz locally, the lake is between a hundred and two hundred metres wide and 1,200 metres long. The villages of Hanyatak, Taşyatak and Boztepe in Akyazı use the pasture in common.
When to go
- Climate
- Across Sakarya as a whole, monthly mean temperatures run from 6.3 °C in January to 23.6 °C in July; the mean stays between 15 and 25 °C in May, June, July, August, September and October; rainfall is heaviest in December (106 mm) and lightest in August (48 mm). Long-term means for 1951-2025 from the Turkish State Meteorological Service (MGM).






