The castle located at the mouth of Havana Bay was once the earliest prototype of Havana. From here, you can overlook the entire Old Havana City, and you can control the entry and exit of Havana Bay. The scenery here is super good, but you must pay attention to sun protection. There are no trees nearby and the ticket price is not cheap. If you feel sorry for coming, don't come, you need to take a taxi here.