BUCCANEER BOUNTY
Do your Harbor Drill daily tasks every day this week — that's how you earn Corsair Keys.
Corsair Keys carry over to future events, so it's fine to bank them if you're not chasing anything specific this cycle.
Pearls of Enigma do NOT carry over — spend all of yours in the Emporium of Enigma before it closes, or they turn into basic resources.
Emporium of Enigma stays open 1 extra day after the rest of the event, so use that time to spend down your pearls.