Backa Boulder has more than 800 square metres of climbing walls in a 1,600-square-metre climbing gym on Hisingen. Bouldering is climbing without ropes, with thick mats below the walls. Visitors climb routes called problems, in a range of styles and difficulty levels, from beginner options to challenges for experienced climbers. Problems vary in both style and difficulty, so climbers can choose a level that suits them.

People trying bouldering for the first time can turn up without booking, and staff can help them get started. Climbing shoes are required, and visitors can hire them at the gym. The facility also has several training areas and a well-equipped gym, giving visitors options beyond climbing the walls. Courses and training are available for children, teenagers and adults. After a session, visitors can use the showers and shared sauna.