Boulderklub Kreuzberg

In the page's words:

Bouldering hall with various FLINTA* offers

Mackers with magnesium bags on their hips and bouldering shoes on their rucksacks line the streets of the city. Alternating between the Boulderklub Kreuzberg and the Kegel, it's time to change the scenery! Come to an open space made up of FLINTA* people of all levels, with changing workshops. Pro tip: cut your nails short, then climbing around on the wall will be much easier.
Information for a FLINTA* bouldering course lasting several weeks can be found on the website.

There is also a monthly BIPOC Boulder Night, which is open to all genders. You can find more information on the Instagram account.