The expedition led by Captain John Narborough left Corral Bay after a meticulous coastal survey that formed part of an expanding interest in the region by European powers, particularly the English and Spanish. Narborough was tasked with mapping the waters and coastal outlines of South America, aiming to enhance navigation safety for future voyages and identify areas for potential colonization or trade. The departure was marked by a somber reality, as Narborough's party had recently lost four of their men to capture by Spanish forces. This stark reminder of the dangers of exploration served as a sobering backdrop to their journey.

While in the region, the expedition encountered various indigenous groups and aimed to forge relations, albeit with mixed results. Naval exploration in these waters was critical during a period of colonial rivalry, and Narborough's mission presented an opportunity for England to assert its presence amidst Spanish claims in the New World. The loss of hostages underscored the volatile nature of maritime exploration, often fraught with conflict, territorial disputes, and the challenges of diplomacy.

Narborough's voyage contributed to the accumulation of navigational charts and local knowledge, which would later support British interests in the region and inform subsequent expeditions. The careful documentation of coastlines and the environmental knowledge gained through such surveys played a crucial role in expanding European understanding of South America during this era.