Clear it in 3 steps
Start the environment
Investigate the target
Submit the flag

Several directories are connected in a tangled web of symbolic links. Without being misled by decoy hint files, follow the links one by one until you reach the real flag file.
ls -la shows where a symlink points (the arrow notation)
readlink -f shows the final real path a link resolves to in one step
find -type l lists only symbolic links