Solution

On the right path, follow the seaweed path and have the goobue eat all four piles of rocks.

Description

The rippling ocean surface and shells strewn upon the beach each reflected the sun's rays in a competition of brilliance.

Every object that caught my eyes glittered like a gemstone, impressing upon me the beauty of the sea. We only beheld the scene in the daylight, but doubtless nightfall would have brought an even more wondrous sight. I have heard that in some areas along the coasts of the Corvos Narrow, the rocks are stained a pale pink, the color arising from a mixture of the environmental aether and the remains of small organisms accumulated over many long years. Again I am reminded how strange and fascinating nature can be.

Incidentally, among the several volumes of The Merchant's Tale I consulted was one from Radz-at-Han wherein the primary setting was a dazzling coastal region. In that edition of the story, the characters traversed a coral cave and walked inside a gigantic spiral shell. There, they accepted a starfish's invitation to the bottom of the sea, where the Sea King bestows upon them a pearl that glows with a soft pink light. This treasure was the one which ultimately moved the maiden's heart.

Indeed, corals, spiral shells, starfish, and such all made an appearance in our journey, yet none seemed to carry any special significance. Perhaps in another version of events these objects could play a more crucial role in the merchant's quest.