start bonus: 395 fog coins
collection: 600 coins every 8 hours
duration: 3 days For collecting times check this.
Fog Coin Quest: 600 coins
We can collect up to 6.395 coins for free + additional coins from the cinema.
We may collect the Beach Dragon. The path costs 3.430 coins. We start at the 'Go!' tile in the center of the map. White line is forward, black line is backtrack.
There's also a hidden treasure chest which contains 250 gems. The purple squares mark the spots where we may find the treasure. It is not in a fixed position, though! It is tied to a certain chest number! That number is fixed, yet different for everyone. The number ranges from #1 to #44. If our number is 1 it will always be in the 1st chest which is marked by a purple square. If it is in #44 you will have to open all marked chests, it will always be in the final one(which means, you won't get it for free). Mobile players may try in airplane mode to test if they have enough coins to get it. Airplane mode means: step 1: enter the game, step 2: turn off wifi and internet connection, step 3: open as much purple chests as possible, step 4: if you didn't find it, close the app, step 5: restore internet connection and try again: your tokens will be restored. If you found it, do not close the app and restore internet connection to save progress! This won't work for browser version of the game, which will crash instantly when internet connection is lost/turned off.
Edit: The number of chests in the purple fields you have to open also changes with every reload. So just try again and again until you get a low number to find it.
Happy hunting, I'll add the map for browser version later.