Above a fishing village overlooking the narrow entrance to the Bahía de Cienfuegos (35 km [21 miles] south of the historical center) is a Spanish fortress built in 1745 to keep out pirates who had grown accustomed to trading with locals. It's completely refurbished (even the drawbridge works) and has a historical museum with weapons and other antiques. The dungeon houses a bar and restaurant. On your way down, note the small chamber beneath the steps; prisoners were chained and tortured here. If you're a woman, we suggest you not wear blue when you visit. Local legend holds that the site is haunted by the ghost of a mysterious female figure dressed in a blue gown; given the fort's notorious history, who can say for sure?
You have three ways to get here: take a taxi (or drive) the whole way, looping counterclockwise around the bay; travel overland directly south of Cienfuegos to the Hotel Pasacaballos at the entrance of the bay and take the short ferry that crosses back and forth to the fort all day long; or board the ferry at the south end of Calle 25 in Cienfuegos with departures at 8 am, 1 pm, and 5:30 pm and returns from the fort at 6:30 am, 10 am, and 3 pm.