ostmarka.blogspot.com

Buldring i Østmarka is a bouldering resource focused on climbing areas in Østmarka, Oslo. It provides information for climbers exploring local boulders, including a printed guidebook sold through retailers in Oslo and online in Norway and the EU, as well as a digital edition available through the Vertical-Life app. The site also shares guidebook corrections, updates about climbing problems, and practical advice, such as how to interpret GPS coordinates when locating boulders in the forest.

Alongside the guidebook information, the site features news about the Østmarka Buldremaraton, an annual team competition organized by Østmarka Vel. The event welcomes both family and main competition classes, combining a social atmosphere with a scored challenge across selected climbing problems. Participants can consult published rules, problem lists, maps, and GPS files to plan their day. The competition has included prizes and a gathering at Dansesteinen near Skøyenputten. Together, these resources help climbers discover bouldering in Østmarka, prepare for outings, and take part in the local climbing community.