📜 18th-century fortification, part of Cartagena's historical defenses. 🔍 Located on Isla de Tierra Bomba, offering historical exploration, featuring original kitchen, garrison, and tunnels. # Why Go 🏰 Explore historical fortifications, tunnels, and original garrison structures. 🦇 Observe bat colonies within the fortress. 🏞️ Enjoy panoramic views of the island, Cartagena Bay, and the defensive system. 🚶 Experience a unique journey involving a ferry, a walk through a small town, and a mosaic pathway. # Why Avoid ⚠️ Requires ferry ride and a walk/climb to access. 🦇 Bats may be present in tunnels, with guano potentially staining historic stonework. # Tips 💧 Bring water for the journey. 🕒 Plan to arrive early; return trips often by 3:30 pm due to tides. 🚶 Entry to the battery itself is free; walk up from the ferry dock. # Cost 💰 Park entrance fee applies; entry to the battery itself is free.