Bays in Papua New Guinea are significant geographical features that provide natural harbors and rich marine biodiversity. The country is home to numerous bays, such as Milne Bay and Humboldt Bay, which are vital for local fishing communities and support various marine life, including coral reefs and fish species. These bays also play a crucial role in transportation and trade, allowing boats and ships to dock safely. The unique ecosystems found in these areas contribute to the overall environmental health of the region, making them important for both conservation efforts and local economies.