Blue Sky (BGM) is a background music track in MapleStory Classic. The following maps play this track:
| Map | Region | Type |
|---|---|---|
| Kerning City Middle Forest I | Victoria Island | Field |
| Kerning City Middle Forest II | Victoria Island | Field |
| Kerning City Middle Forest III | Victoria Island | Field |
| L Forest I | Victoria Island | Field |
| L Forest II | Victoria Island | Field |
| L Forest III | Victoria Island | Field |