Open weekdays from 17 - 23:00. Closed on holidays.
Gyeonggi Climbing (경기 글라이밍) is a simple basement bouldering gym, and the holds are old but nicely varied. It features some excellent fingerboards, plenty of steep to vertical climbing surface, and most importantly, there's much good energy here!
Who owns the gym isn't clear to me. But a warm-hearted woman named 박미영 (you can call her Mi-yeong) seems to run the place. She speaks decent English as well. Like at most Korean gyms, most the climbers train by route climbing (30 - 50 moves) and have outstanding endurance. The climbers here also enjoy bouldering. But expect their boulder problems still to be many moves long.
Gyeonggi Climbing hosted the Morak Boulder Town competition.
Located next to a hair salon. A basement gym, with entrance at ground level.
Take line 1 or line 4 to 금정역 (Geumjeong Station) and walk out Exit 4 or 6. Continue SE down the main street (산본로) for about 30 meters. Take the first obvious right, into blocks of restaurants. Walk straight SW through the first obvious intersection. Continue to the second intersection. On the SE corner is an underground parking garage. On the S corner is a hair salon. On the N corner is a convenience store, with liquor bottles in the window.