The reveal came at the end of a virtual press event which Disney did not allow media outlets to record.
Blue Bayou will become the second location where the general public can buy booze inside Disneyland.
The expansion could potentially include new lands in Disney's two existing Anaheim parks and a new shopping, hotel and dining district.
The dueling waterslides will first debut for passholders on April 1 and 2.
The parks have not been open with rides or attractions since March 2020.
Disney CEO Bob Chapek said the resort will need time to call back and retrain thousands of Disneyland employees.