At the center portion of Minacious Isle, as shown in the picture below, you will find four elemental Monument Totems. By hitting them in the correct order you will be able to get a Luxurious Chest and 3 Starlight Coalescence. This guide explains how to solve this puzzle in Genshin Impact 2.8 Summertime Odyssey event, which started on 15th July 2022 and will end on 24th August 2022.
Read the stone tablet near the cryo totem and it will tell you to look out for elemental symbols on the island. Sort the symbols from top to bottom based on their elevation and then hit the elemental totems in the same order.
Go to the southwest portion of Minacious Isle and follow the bird as shown in the picture below. This bird will lead you to four big pictures of the elemental symbols.
The bird will first lead you to Hydro Symbol. It is in the water at the beach on the far left of the island. The Cryo symbol is on the cliff wall east of the hydro one. From Cryo, climb up the cliff on the north side to find the Anemo symbol on the grass. The Pyro is a leaf formation above the puzzle. The four pictures sorted from top to bottom based on their elevations are shown below (Pyro-Anemo-Cryo-Hydro).
Now go to the puzzle area and activate the four elemental totems in this sequence: Pyro-Anemo-Cryo-Hydro. Pyro is on top of a broken arch. Anemo and Cryo are on the lower levels. The Hydro is on top of a big arch.
Once you have activated the totems in the correct order, a portal will appear as shown in the picture below. Cast Anemo to the windmill nearby to activate the wind current. Then take the wind current to enter the portal. You will find a Luxurious Chest and 3 Starlight Coalescence inside.
