The northeastern corner of Türkiye, where the Caucasus meets the Black Sea: steep Çoruh valleys, Georgian-heritage villages, the Karagöl lakes and Macahel, the country's only UNESCO biosphere reserve, often called its temperate rainforest.
The province covers 7,393 square kilometres of almost entirely vertical terrain on the Georgian border: forested ridges above 3,000 metres, glacial lakes in clearings and high summer plateaus where villages still hold centuries-old cattle festivals. The Çoruh River runs through the middle of it. Its canyon between Yusufeli and Artvin was once known for long Class IV and V rafting descents, but a chain of hydroelectric dams now holds most of that stretch as reservoirs, and the Yusufeli Dam lake submerged the old town of Yusufeli in 2023. The gorges are still spectacular from the road.
Macahel is the old name of the Camili valley in the Borçka district: six villages closed in by mountains on three sides and by Georgia on the fourth. In 2005 it became Türkiye's first UNESCO biosphere reserve, and it is still the only one, about 25,000 hectares of humid Colchic forest, the temperate (not tropical) rainforest type protected across the border in Georgia as the "Colchic Rainforests and Wetlands" World Heritage site. Oriental spruce, black alder, Caucasian lime and hazel grow in heavy rain and mist, and the valley is one of the last refuges of the pure Caucasian honeybee.