How did blockade-runners manage to avoid union forces even after they captured port royal?

Blockade-runners employed various strategies to evade Union forces after the capture of Port Royal. They utilized fast, shallow-draft vessels that could navigate through coastal waters and avoid deeper blockade ships. Additionally, they often operated at night or in poor weather conditions, taking advantage of their knowledge of local geography and tidal patterns to slip past Union patrols. Furthermore, some blockade-runners relied on local support and networks to gather intelligence and coordinate their movements.