Antigua and Barbuda: Geography and Environment

Antigua and Barbuda is a twin island nation in the Eastern Caribbean, part of the Leeward Islands chain, with the Atlantic Ocean to the east and the Caribbean Sea to the west. Antigua, the larger of the two main islands, has a low, hilly terrain shaped by ancient volcanic activity and limestone formations, while Barbuda lies flatter and features an extensive coral reef system offshore. The country also includes the small, largely uninhabited island of Redonda. Antigua's coastline is known for its many sheltered harbors and beaches, and its highest point, Mount Obama, rises modestly above the surrounding lowlands.

The islands have a tropical maritime climate with a wet season from June through November and a drier season from December to May, and they sit within the Atlantic hurricane belt. Barbuda is markedly flatter than Antigua and is home to the Codrington Lagoon, a large brackish lagoon that supports one of the Caribbean's largest frigatebird colonies. Rainfall is generally limited across both islands, and freshwater has historically been scarce, shaping settlement patterns and agriculture.

Environmental priorities center on water scarcity, coral reef protection, and resilience to increasingly severe hurricanes. Barbuda was devastated by Hurricane Irma in 2017, prompting renewed focus on rebuilding with stronger, more climate resilient infrastructure. The government has invested in desalination to address chronic freshwater shortages and has worked to protect the Codrington Lagoon and surrounding mangroves, which serve as nurseries for marine life and natural buffers against storm surge.