Below are all the chests found at Festibane in Trinity Trigger.
Miracle Fruit
This chest can be found in the wooded southwestern corner of town.
Mega Potion
This chest can be found on the southern edge of town along a fence.
Defense Augite IV
This chest can be found behind some trees on the northeastern side of town. Enter this hidden path near the wagon.
For more guides on Trinity Trigger, click here!