The marble extracted here has four distinct color variants: white, gray, gray-green, and black.
The quarry was abandoned in the late 19th century after manual extraction methods became inefficient, leading to the natural flooding that created the lake.
The water clarity allows for visibility up to 15 meters deep in some sections.
During winter, the canyon walls are illuminated with LED projections, and the frozen lake surface is used for light displays.
The park contains the remains of lime-burning kilns used in the industrial processing of marble waste.
The canyon's microclimate often results in temperatures slightly lower than the surrounding forest.
Mramornyy Kan'on is the central feature of the Ruskeala Mountain Park, formed from a flooded marble quarry once used for construction in Saint Petersburg. The site contains a deep, emerald-colored lake surrounded by steep marble cliffs rising up to 25 meters above the water level. The quarry supplied stone for the interiors of St. Isaac’s Cathedral and the Hermitage Museum. Visitors can navigate the flooded sections via rental rowboats or glass-bottomed boats. Underground galleries and adits remain partially accessible for guided exploration. The site includes a network of walking paths along the quarry rim. Diving and zip-lining are available as seasonal recreational activities. The surrounding landscape consists of Karelian taiga forest.
The main viewing platform at the southern edge of the quarry offering a panoramic view of the cliffs and the boat dock.
Wear sturdy, closed-toe footwear as the paths along the canyon rim are rocky and uneven.
Visit the secondary viewing platforms on the opposite side of the main entrance for fewer crowds.
Bring a windbreaker, as the canyon creates air currents that keep the area cooler than the park entrance.
Do not attempt to swim in the quarry lake, as the water temperature remains dangerously low even in mid-summer.
The park is open year-round, but water-based activities like kayaking are strictly seasonal (late spring to early autumn).
Stay behind the safety railings on the cliff edges; walking on the edge is strictly prohibited.
