For 20 points, name this inlet of the Pacific Ocean bordered by Nicaragua, Honduras and El Salvador.
Cape Cosiguina borders the entrance to this body of water, on whose shore the volcano Conchagua rises. Puerto Morazan lies on this body of water at the mouth of the Estero Real River, and other tributaries of this include the Negro, Goascoran and Choluteca rivers. Meanguera Island, part of the La Union department, lies in this body of water, and the city of Amapala lies on its Tiger Island. Although it is not Lake Nicaragua, E. G. Squier negotiated an 1849 treaty for the US to build a canal through this body of water which never came to fruition. For 20 points, name this inlet of the Pacific Ocean bordered by Nicaragua, Honduras and El Salvador.
Cape Cosiguina borders the entrance to this body of water, on whose shore the volcano Conchagua rises.
Gulf of Fonseca [or Golfo de Fonseca]