aaarrrRRRR !!
Finding this treasure's place will be easy....... Terrain wise...... after all, it is a 1 terrain. So that means it is handicap accessable.
Difficulty wise is a different story. YO HO, YO HO
Make sure you look at the attributes as you just may need one of your TOTTs to help for retrieval.
Also, beware of muggles coming by.
Have fun and make sure you replace each stage as it was.