Aq Su Waterfall

Aq Su Waterfall is one of the most beautiful natural attractions in Golestan Province. It lies within Golestan National Park, near the town of Galikash. The waterfall is located along the Gorgan–Bojnord road, close to the Golestan Tunnel, and is a popular destination for nature lovers thanks to its setting amid dense forests and unspoiled scenery. In Turkic, Aq Su means "white water", and the name refers to the white foam created when the water hits the rocks. The waterfall's position between moss-covered rock walls, together with its year-round flow, creates a striking and distinctive scene in the heart of the Hyrcanian forests.

Aq Su is one of Iran's tiered, mossy waterfalls, and its water flows through natural pools and colorful rocks. The waterfall's total height is estimated at about 70 meters. After passing through the forest, its water joins the Madarsu River and then the Gorganrud. A narrow gorge with high walls, green moss, natural pools and forest views makes the area even more appealing. Near the waterfall is the Aq Su Spring, one of the most abundant springs in the region and a complementary attraction in this tourist area. The unspoiled nature, the variety of plant life and the proximity to Golestan National Park make the area very rewarding for nature photographers and forest hikers.

To reach Aq Su Waterfall, enter Golestan National Park from the Gorgan–Bojnord road. After passing the Galu Gorge and before reaching the Golestan Tunnel, the access path is on the north side of the road. The rest of the route takes about 20 minutes on foot along a forest trail, with some sections requiring you to cross the river, so suitable hiking footwear is recommended. The best time to visit is spring and early summer, when the landscape is at its greenest and the waterfall carries more water. During your visit, please do not litter, damage the vegetation, make noise or enter sensitive habitat areas, so that this valuable natural heritage is preserved for future generations.