It shares its name with a gulf which contains the Gulf of Uraba and which it itself the southernmost portion of the Caribbean Sea.  
It is home to the Los Katios National Park, which became a World Heritage Site in 1994, and to a National Park which shares its name.  It measures some 100 miles long by 30 miles wide, and the Rio Atrato flows through its southeastern portion.  Home to the Choco and Cuna tribes, its town of Yaviza is a terminus of the Pan-American Highway. It shares its name with a gulf which contains the Gulf of Uraba and which it itself the southernmost portion of the Caribbean Sea.  FTP, name this impassable "gap" of Colombia and Panama, upon a "peak" of which "stout Cortez" is said to stand "silent" in Keats' "On First Looking into Chapman's Homer."
It is home to the Los Katios National Park, which became a World Heritage Site in 1994, and to a National Park which shares its name.  
Darien Gap