See the Sights: Puerto Rico's Best Bus & Trolley Tours
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… New), as well as to sites outside the metro area like El Yunque National Forest ; Guavate ,"the pork highway," and … Plaza Las Américas , the largest mall in the Caribbean. El Yunque is the only tropical rainforest in the U.S. National Forest System. El Yunque National Forest Among the most popular bus tours are …

The metro area bus system has well-established routes.