50.000 Pesos Gorgona Island Park

Gorgona Island spent nearly three decades as Colombia's most feared maximum-security prison, operational from 1959 until its closure in 1984 under pressure from human rights organizations. The isolation that made it ideal for incarceration — strong currents, sharks, and no viable escape route — is the same geography that preserved its rainforest and reef ecosystems intact enough to warrant national park designation the following year.

Colombia's national park coin series has leaned heavily on silver-plated issues since the mid-2010s, threading commemorative ambition through a modest production budget.