Reference article
The Valley Crystal Key
Explore the valley beyond the Crystal Ducks.
Quest guide
Step 1
Find the three Crystal Ducks in 
Crystal Desert.
Step 2
Defeat First Of The Three, Second Of The Three and Third Of The Three in their races.
Step 3
Explore the valley beyond them and collect 
Crystal Key B.
Step 4
Combine it with Key A from Archery Cave and Key C from Hot Air Balloon to open the Tournament Centre gate.
Starting it
Challenge 
First Of The Three, 
Second Of The Three and 
Third Of The Three.
Reward
Things to know
The keys open the grounds. The tournament ticket is a separate reward from Crystal Mines.
