Bertha is an Indian Elephant and one of the most recognizable attractions in the Disney Jungle Cruise. Here, she is wearing a flower lei and a beachcomber's hat.
From TikiLand Trading Co.:
"Sunbathing Bertha was always happy to be showered with waterfalls of affection and joy. She is sure to make you as happy as an elephant in a bathing pool in a magical river of exploration.
This mug is also available as part of the 'You're in De Nile' 2 mug set."
First announced as a pre-order on March 28th, 2020 for $95. Later, the price was increased to $110. There were some production problems, but mugs started going out in Spring 2022.