Ordered to the Pacific in 1866, "Nyack" cruised the coasts of Ecuador, Peru, and Chile, protecting American nationals while maintaining American neutrality during tension between Spain and her former colonies. She gave asylum to General Manuel Pardo, ex-President of Peru, on 10 January 1868 as he fled revolutionary turmoil, carrying him safely to Valparaíso. After similar service to America's foreign relations "Nyack" returned to San Francisco early in 1871, decommissioning on 15 March 1871. She was sold there to W. E. Mighell on 30 November 1883.