The Trials Cavern is a small world floating nearby the Observatory. The only way to access it, is to collect the three special bonus stars. You cannot collect a trophy or fish in any of the three galaxies it leads you to, in order for you to complete the trials.
|Type of Essence||Pecific Essence||How to Obtain||Picture|
|Fish||Goby||Fish in the Crystal Pond.|
|Trophy||Septre||Complete all the Trials.||N/A|