Domidak and Prissen want to reach a treasure chest, but it is in the middle of a bog.
Quest Location
You will find Domidak and Prissen near the road west of Ekochiu Shrine, at 0599, 1282, 0046. Talk to them to start the quest.
How to Solve the Quest
One way to solve this quest is to use the nearby construction materials to build a long bridge, and place it between the treasure chest and the shore.
Quest Reward
The chest contains three Bomb Flowers.