Judarskogen was the first area in Stockholm to be designated as a formal nature reserve, receiving its status in 1995.
The lake basin was once part of the Baltic Sea before land uplift processes isolated it and transformed it into a freshwater lake.
The forest contains significant deadwood, which is preserved to support endangered wood-living beetle species and fungi.
The reserve acts as an ecological stepping stone, connecting the larger green wedges of Stockholm's western suburbs.
Traces of human activity from the Bronze Age have been identified within the reserve borders.
Judarskogen is a 220-hectare nature reserve in Bromma, Stockholm, known as the city's first established nature preserve. It surrounds Lake Judarn, a shallow forest lake located in a basin formed during the last glacial period. The area features a diverse terrain comprising mixed coniferous and deciduous forests, meadows, and wetland marshes. Several marked walking trails circulate the lake and connect to the larger nature paths of western Stockholm. The reserve is home to several smaller water bodies, including Ängsjö, and serves as an important ecological corridor for local wildlife. Geologically, the area is characterized by exposed bedrock and glacial deposits that demonstrate historical shoreline displacements. It is maintained by the City of Stockholm to preserve biodiversity and provide recreational access to woodland environments.
The wooden boardwalks crossing the wetland sections offer clear, unobstructed views of the lake surface and surrounding birch groves.
Wear waterproof hiking shoes, as the paths through the marshlands and forest floor can remain muddy long after rainfall.
Follow the marked nature trail loop to ensure you cover the varied terrain of both lakeside and dense woodland.
Bring insect repellent during the summer months, particularly when walking near the marshy sections of the lake.
Attempting to walk off-trail in the marshland zones, which can lead to rapid erosion and damage to protected vegetation.
Practice Allemansrätten (Right of Public Access) by leaving no litter, keeping dogs on a leash, and avoiding damage to flora or wildlife habitats.
