For 10 points, name this largest city in Ecuador.
A river named for this city is formed by the confluence of the Daule and Babahyo rivers. Visitors to this city can visit its neighborhood of Urdesa, and its airport is named after a former poet, mayor and national president, Jose Joaquin de Olmedo. This city was founded by Francisco de Orellana and contains an urban renewal project called Malecon 2000, a riverfront walkway. In (*) 1822, Simon Bolivar and San Martin held a conference in this city concerning the fate of South America; in 1820 this city declared independence from Spain, leading to a victory at the Battle of Pichincha after it allied with the  ? Quito army. For 10 points, name this largest city in Ecuador.
A river named for this city is formed by the confluence of the Daule and Babahyo rivers.
{Guayaquil}