Fortnite Season 9 – Fortbyte 12 Location
Fortbyte 12 Accessible By Using The Nana Nana Spray Inside A Molten Tunnel, is located underneath the tunnel north of Dusty Divot, you can get there from the lava side, or go in from the entrance above ground south of Tomato. Once there use the Nana Spray Emote, and the FortByte will appear.
See our Master FortByte Map with links to all of the FortBytes here