Korean Air Skypass - ICN Lounge for Delta Crown Lounge members

I know I can use any of the three lounges at ICN as long as I am on a Skyteam flight. I read on the Skyteam site that one of the lounges opens at 3:30AM, they say it is a 300 person lounge at Airside - Level 4 - East. Can someone tell me which lounge this is? What gate is it near?

That lounge must be the prestige class lounge located at near gate 12 or 11. If your flight is not KE, then most likely you have to move on to concourse A, but KE lounge at concourse A opens at around 6:30AM.