The Barbuda Bank is a large submerged carbonate platform in the Atlantic Ocean, covering about 3,500 square kilometres. Three major islands emerge above the bank: Antigua, Barbuda, and Redonda.National Adaptation Plan for Antigua and Barbuda The shallow nature of the bank has nurtured coral reefs and seagrass populations that indirectly contributed to the seafood-based diet of the ancient Antiguans and Barbudans, and to the aquaculture of modern-day Antigua and Barbuda. References