Located very close to Lima downtown, the Cerro San Cristobal (Saint Cristobal Hill) is a 400m high peak from which you can have a privileged, unique panoramic view of Lima: on a clear day, with a little luck, you may see the ships anchored at Callao Bay. Legends say that this hill was named got its name after an indigenous rebellion in 1536, after which a wooden cross was placed at the peak to protect the city. Nowadays there's a huge cross instead and a site museum that houses historic photos and documents of old Lima and related to the cross. But the best is the stunning panoramic view, specially in Summer or Spring. The best time is very early in the morning or late afternoon. You can take a bus at the Plaza the Armas (on weekends), which will take you to the top of the San Cristobal, stay there 20-30 minutes and then bring you back.