The Explorer's Celebration, a limited-time event, grants you additional rewards for the following in-game activities:

Double Drops from Harvest Nodes

Harvest nodes for crafting materials (ore veins, wood, runestones, clothing and alchemy plants, pure water) will provide you with double their usual yield during the Explorer's Celebration. This bonus will not apply to fishing or looted provisioning items. 

Double XP Gains

During the Explorer's Celebration Event in ESO, you will get double XP gain from all sources, including monster kills, completed quests, PvP and random dungeon clears. 

This bonus will stack with other effects that improve your XP gains, such as XP scrolls and Psijic Ambrosia. This means that this is a great time to level up a new character or a skill line. Here are five great places to grind XP that you might not have heard of.

Double Gold Gain

During this event, you will also earn double gold from some sources, such as quest rewards and loot from defeated enemies. 

Do I Need to do Anything to Get These Bonuses?

No! These bonuses are available to all players in any zone in Tamriel, and there is no introductory quest that needs to be completed to unlock them.

You can find a list of all zones here. It might be a good idea to combine the event with a set you would like to obtain in a certain zone or achievements you would like to get. Especially if they are connected to gathering resources or killing a specific amount of monsters. This way you will also receive a lot more EXP than without a double EXP event.

Is The Impresario Active during the Explorer's Celebration?

No. This is technically a "mini event", meaning there are no quests associated with the event, no way to earn Event Tickets and the Impresario and Indrik Vendors will not be active. Achievements, or collectibles associated with it.

The ESO Explorer's Celebration Event runs for six days only, so don’t miss out on your chance to get extra experience, gold, and resource node drops - Good Luck!