From santa catalina, the pirates left for Panama, approaching by sailing up the Chagres river.
海盗们从圣塔卡塔琳娜出发前往巴拿马,沿着查格雷斯河逆流而上。
TED-Ed(视频版)
And fortunately, the low-lying Chagres river valley provided a natural solution.
幸运的是, 地势低洼的查格雷斯河谷提供了一个天然的解决方案。
英语百科
Chagres and Fort San Lorenzo
Chagres (Spanish pronunciation:[ˈtʃaɣɾes]), once the chief Atlantic port on the isthmus of Panama, is now an abandoned village at the historical site of Fort San Lorenzo. The fort's ruins and the village site are located about 8 miles (13km) west of Colón, on a promontory overlooking the mouth of the Chagres River.