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A satellite image shows a cluster of green islands surrounded by beige sand flats and networks of channels full of dark blue water.

Guinea-Bissau Tidal Waters

Relatively low tidal waters expose sandflats and mudflats in the Bijagós Archipelago of Guinea-Bissau in this image acquired on November 28, 2025, with the OLI (Operational Land Imager) on Landsat 8. These coastal landforms support an array of invertebrates, making the archipelago a popular stopover for migratory shorebirds.

Image Credit: NASA/Lauren Dauphin, USGS

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TakenNovember 28, 2025
Image CreditNASA/Lauren Dauphin, USGS
Size7236x6030px