Treasure Cave is the final reward in the Reward Lane, the entry to which is available to Gold Pass holders only. Complete more Bonus Tasks and earn more rewards from the cave till the end of the event.
Note: Bonus Tasks will be available to Gold Pass holders only after completion of all Active Tasks in the event.
Related FAQs:
What is Kekoa's Adventure?
What are the various Tasks in the event?
What is the benefit of having a Gold Pass?
What are Perks?