Golfo Nuevo (Spanish for "New Gulf") is a body of water formed by the PenÃÂnsula Valdés and Punta Ninfas in the province of Chubut in the Argentine Patagonia. It is located southwest of Buenos Aires, Argentina. Puerto Madryn is its major seaport.
From May to December, the southern right whales migrate to Golfo Nuevo to breed, drawing numerous tourists through Madryn.
The bight was named BahÃÂa Sin Fondo ("Bottomless Bay"; or ) by Ferdinand Magellan when he visited it in 1520. In the 18th century, Welsh colonists renamed it BahÃÂa Nueva (), whence its current name. It was also sometimes known as BahÃÂa de San MatÃÂas ("Saint Matthew's Bay"). The gulf was surveyed by Robert Fitzroy in HMS Beagle in 1834. Golfo Nuevo was also the scene of a series of mysterious submarine contacts in 1958 and 1960.