The Elder Scrolls Online's High Seas of Tamriel event runs from September 30 through October 14, 2026. Its daily quest sends players into ship-to-ship combat and an underwater search for treasure. Completing the first event quest of the day earns a Legendary Deep Plunder box with 300 Trade Bars, plus a chance at other rewards.
Start with the event's two quests
The event page describes High Seas of Tamriel as a chance to battle at sea and explore the ocean floor. ESO's Update 51 notes name two quests. The introductory quest, "Raising the Riotous Redress," begins the story around a ghostly captain and a sunken vessel. The repeatable daily, "Bounty of the Abecean Sea," includes a ship battle and an underwater encounter.
ESO's New Event Ahoy announcement on Steam previews the event and describes its rewards. The live event page lists the active dates and the ship combat and underwater exploration premise.
The event ends October 14, so players have a limited window to complete the daily and collect its event rewards. ESO's live event page gives the September 30 to October 14 schedule.
What the daily box guarantees
ESO's event announcement says the first Deep Plunder box earned each day is Legendary. Opening it awards 300 Trade Bars. The box can also contain other rewards, which are chances rather than guaranteed items. Completing a subsequent High Seas quest on the same day, once per character, awards an Epic Deep Plunder box.
ESO guarantees the 300 Trade Bars through the first daily box. Cosmetic pages and other loot depend on the box's reward pool. The event announcement does not publish drop rates, so a specific style page or mount fragment is not promised after a set number of runs.
Styles, treasure and mount progress
Deep Plunder boxes can contain outfit style pages, treasure maps and furnishings. They can also contribute progress toward the Suncleft Grotto Ornaug mount. ESO's event details say that mount requires three types of fragments earned by taking part in different elements of the event. They list Arcing Ornaug Energy, Captured Systres Zephr and Galen Seawater as the fragments.
The event also adds nautical Antiquity leads, including tradeable leads and furnishing recipes that players can excavate and craft. These systems offer several reasons to explore the event beyond opening the daily box. Since the box contents are chance-based, players looking for one specific collectible should treat it as a target to work toward rather than a guaranteed daily drop.
The event notes also say that finishing the ship battle or defeating the enemies below the surface can award other event rewards, including Pirate gold and furnishings. If you want more than the daily Trade Bars, take time to complete both parts of the voyage and search the seafloor. Those activity rewards sit alongside the Deep Plunder boxes, so they give players another reason to finish the encounter.
Plan around the October 14 end date
The event schedule is short enough that it is worth checking the quest before the final day. ESO lists October 14 as the end date but does not specify an end time or time zone. Players should leave room to complete a final daily quest before the event closes.
For each visit, prioritize the daily quest if the 300 Trade Bars are the main goal. Additional event quests can provide another box once per character that day. Players chasing the Ornaug can also spread their activity across the event's different encounters, since the three mount fragments come from different parts of the event.
Prioritize the daily quest
High Seas of Tamriel pairs a story quest with a repeatable daily built around a ship fight and underwater exploration. Complete the first event quest of the day for the Legendary box and its 300 Trade Bars, then look for cosmetics, Antiquity items and mount fragments before October 14.
Frequently asked questions
When does the ESO High Seas of Tamriel event end?
The event runs through October 14, 2026. The official event page does not list an end time or time zone.
How many Trade Bars can I get from the daily event box?
ESO's Update 51 notes say the first Deep Plunder box earned each day awards 300 Trade Bars.
Which quest gives the daily High Seas reward?
Bounty of the Abecean Sea is the event's daily quest. The first event quest completed each day earns the Legendary Deep Plunder box.
How do I earn the Suncleft Grotto Ornaug mount?
The Update 51 notes list three fragments earned from different event activities: Arcing Ornaug Energy, Captured Systres Zephr and Galen Seawater.
Check the live event page
The official ESO event page lists the event dates and premise. Use the daily quest to collect the 300 Trade Bars, then look for event collectibles in reward boxes and activities.
For another live October event with free quests, see our Fortnitemares 2026 rewards guide.
