Berghain is located in the Friedrichshain neighborhood of Berlin and is easily accessible via public transportation. The exact route you take will depend on your starting point, but here's a general overview of how to get to Berghain using the city's public transportation system:
Berlin U-Bahn (Subway) and S-Bahn (Urban Rail):
Take the U1 subway line to the Warschauer Straße station.
From there, it's about a 10-15 minute walk to Berghain. Follow the signs toward Oberbaumbrücke (a prominent bridge) and look for Köpenicker Straße. Berghain is located on Am Wriezener Bahnhof, which intersects with Köpenicker Straße.
Tram:
Depending on your location, you may be able to take a tram to the Warschauer Straße tram stop.
From there, it's a short walk to Berghain, following the same route as mentioned above.
Bus:
Some bus lines also serve the Warschauer Straße area, making it convenient to access Berghain via bus and then walking.