The south-shore promenade
A flat, paved walk from Kırkpınar to Uzunkum that suits pushchairs and bikes, lined with fishing piers and lakeside cafés.
Kocaeli Kameraman Şadi Akdoğan — CC BY-SA 4.0 · Acar54 — CC BY-SA 3.0 · gizem keskin — CC BY-SA 4.0 · gizem keskin — CC BY-SA 4.0
The lake outside your bungalow window is not a resort lake at all: it is the drinking-water reservoir for Sakarya and İzmit, which is why motorboats are banned, there are no organised bathing beaches, and signs along the shore warn you against going in. That restriction is the secret of its calm. Sixteen kilometres of still water sit between Mount Kartepe and the Adapazarı plain, with no jet-skis carving it up and no hotels on the sand, only a long promenade along the south shore where families stroll in the evening with the green mountain behind them. The promenade, the sahil yolu, runs from the Kırkpınar suburb in the west to Uzunkum park in the east, flat and fully paved: pushchairs roll without effort, and bikes are hired by the hour from municipal docks and small shopfronts along the way. Kırkpınar is where you find the pedalos (a few hundred lira an hour), canoes and paddleboards, and the cable car, opened in 2023 and running again after a licensing dispute closed it for a spell in 2024, which lifts you some 1.5 km up the slope behind the town for a view of the whole lake. The best hour by far is sunset, when the sky lands on the water and the fishing piers turn into benches. You should know what you will actually find, though. After several dry years the lake fell in December 2025 to the lowest level ever recorded, low enough to expose a small islet with the mosaic floor of a Byzantine chapel that used to be underwater. Since early 2026 extra water has been piped in from nearby dams and reservoirs, but in summer the shoreline can sit further from the promenade than the photos suggest, and the wooden piers sometimes hover over dry mud. The view is still lovely; it is just less full. In August the promenade is crowded with Gulf visitors and Istanbul weekenders alike, and prices peak, especially on weekends and over Eid; the heat is bearable compared with Istanbul thanks to the mountain and the water. Spring and autumn are the finest, with morning mist on the lake and Kartepe changing colour. In winter the lake turns grey under snow-capped peaks, which is exactly the scene many people book a bungalow with a fireplace to see. From Istanbul it is roughly 1 h 45 by car, or the high-speed train to Arifiye station and a ten-minute taxi.
A flat, paved walk from Kırkpınar to Uzunkum that suits pushchairs and bikes, lined with fishing piers and lakeside cafés.
Pedalos and canoes on the water, and a cable car opened in 2023 that climbs some 1.5 km up the slope behind the town for a view of the whole lake.
Sapanca's finest hour: the sky mirrored on still water with no speedboats, the mountain shading the far shore.
Sahil Yolu (lakeside promenade), between Kırkpınar and Uzunkum, Sapanca, Sakarya
Not really. The lake supplies drinking water to Sakarya and İzmit and lies in a protected watershed: motorboats are banned, there are no organised or lifeguarded beaches, warning signs stand at several points and drownings happen most summers, so treat it as a lake to look at rather than swim in. What is on offer is pedalos and canoes from Kırkpınar and fishing from the piers. If the children need water, that is what the bungalow or hotel pool is for.
Yes, with realistic expectations. After several dry years the level hit a record low in December 2025, so you may find the shoreline pulled back from the promenade and some piers over dry mud, especially in late summer. The sunset view from the promenade and the cable-car ride are still lovely, and extra water has been piped in from nearby dams since early 2026.
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