Below are the side quests that can be obtained in Eryth Sea!
Ancient High Entia Mystery
Obtained: Speak with Talia between 18:00 – 6:00 at the Ether Plant
Objective: Investigate the War God statue at La Luz Church in Valak Mountain
You will be able to enter La Luz Church after completing the side quest called The Imperial Ceremony. Head inside the church then interact with the statue. Afterwards book it back to Talia because a level 97 enemy will spawn after you interact with the statue. Once you speak with Talia as Melia, the quest will complete.
Collection Quest 1
Obtained: Speak to an Alcamoth Citizen on the second level of Syrath Lighthouse
Objective: Collect 3 Hiln Coin Purses and 5 Doomsday Poppies from Eryth Sea
Hiln Coin Purses are dropped from Eryth Hiln, which can be found on Hovering Reef 1 near Latael Shore and Anu Shore (eastern Eryth Sea). The Doomsday Poppies can be found on the ground near Latael Shore.
Collection Quest 2
Obtained: Speak to an Alcamoth Citizen on the second level of Syrath Lighthouse
Objective: Collect 3 Andos Antennae, 3 Old Dragon Spines and 3 spears of Pink Asparagus
The Andos Antennae are dropped from Azul Andos in the High Entia Tomb. The Old Dragon Spines are dropped from Racti Lexos, which are located on Hovering Reef 5 and Hovering Reef 8. To reach the one on Hovering Reef 5, you will need to drop down the hole on the floating part of Hovering Reef 5 to reach the pond below. The Pink Asparagus can be found on the ground on Hovering Reef 3 & 4.
Hode Attack
Obtained: Speak with Jarack at the Ether Plant after completing the Trouble at the Plant side quest
Objective: Defeat 2 Confusion Ekidnos at Eryth Sea
The Confusion Ekidno are located at Ether Plant. Defeat them then return to Jarack and speak with him to complete the quest.
Mend the Plant
Obtained: Speak with Jarack at the Ether Plant
Objective: Collect 3 pieces of Luxury Hode Wood from Hodes at Eryth Sea
The Luxury Hode Woods are dropped from Possessio Hode on Hode Refuge. Once you collect the items, return to Jarack and speak with him. Afterwards, use the Turbine Access Panel in the Ether Plant to fix the plant then return to Jarack.
Monster Quest 1
Obtained: Speak to the Lighthouse Keeper at Syrath Lighthouse
Objective: Defeat 5 Palti Kromars at Eryth Sea
The Palti Kromars can be found on Hovering Reefs 6 and 7.
Monster Quest 2
Obtained: Speak to the Lighthouse Keeper at Syrath Lighthouse
Objective: Defeat 5 Maleza Kromars at Eryth Sea
The Maleza Kromars can be found on Hovering Reef 7.
Monster Quest 3
Obtained: Speak to the Lighthouse Keeper at Syrath Lighthouse
Objective: Defeat Flabbergasted Jerome in the area of Hovering Reef 5 at Eryth Sea
The Flabbergasted Jerome is a level 38 unique enemy that can be found on Hovering Reef 5 in the water underneath the hovering island. You will need to drop down the hole on the floating part of Hovering Reef 5 to reach the pond below.
Punish the Hodes
Obtained: Speak with Jarack at the Ether Plant
Objective: Defeat Funeral Gozra at the Hode Refuge in Eryth Sea
Funeral Gozra is a level 42 unique enemy that can be found in Hode Refuge. After defeating him, return to Jarack and speak with him.
The Missing Boy
Obtained: Speak with Miriall between 18:00 – 6:00 at the Ether Plant
Objective: Talk to Teelan
Teelan can be found in Alcamoth in the southeastern part of Melfica Road. Speak with him then return to Miriall to complete the quest.
Trouble at the Lighthouse
Obtained: Speak with Shalen on Hovering Reef 4
Objective: Defeat 3 Decay Ekidnos near Syrath Lighthouse at Eryth Sea (only at night)
In order to receive this quest, Melia will need to be the party leader when you speak with Shalen. Shalen will then want you to defeat 3 Decay Ekidnos. Switch the game to night then defeat the 3 Decay Ekidnos around Shalen. Afterwards, speak to Shalen to complete the quest.
Trouble at the Plant
Obtained: Speak with Jarack at the Ether Plant
Objective: Teach the head of the Hodes a lesson and use the Turbine Access Panel in the Ether Plant at Eryth Sea to fix the plant
Complete the Punish the Hodes and Mend the Plant side quests then speak with Jarack to complete this quest.