Florem (Clear Seas)

You'll be back in Florem. After the scene, a party chat will be available. (The Pendant). Since the seas have cleared, you have to go back to your ship. Make preparations then leave the town to journey back east. Go through the Miasma Woods to reach Ancheim's region then from there, head to the dock where the Eschalot is waiting.

Tip: Before sailing, you can return to the Temple of Wind and talk to the anchorite of wind, mouthpiece of Hresvelgr in the temple's second floor. Like Ziusudra's Sin, you have to withstand the attack from that summon before you gain command of it. You need at least one party member to survive the attack, in order to complete the challenge. To do this, equip the abilities that will increase magic defense and have that particular character carry a Wind Charm. The higher the magic defense, the better.

Once done, board the Eschalot and sail westward to the open sea to trigger some cutscenes.