Sancti Spiritus Province
There is almost every ecosystem of the Caribbean in this small but diverse province. It is flat on the south coast, mountainous in the west, home to mangroves and swamps in the southeast and has protected wetlands on the north. The largest man-made reservoir in Cuba is here as is the only town in Cuba that has almost no 20th century architecture. Declared an UNESCO World Heritage Site, in Trinidad you can still almost sense the presence of 17th century Spanish garrisons and pirates in a place nearly frozen in time where the architecture dates back to the Spanish conquest during the 16th century.