The presidential palace, El Palacio de las Garzas (Palace of the Herons), is on the left at Calle 5 Este, overlooking Panama Bay. It’s an attractive place that houses the presidential office and residence. The president lives here and visitors are not permitted.
The place and the neighboring streets are surrounded by guards, who may ask for your passport, but more likely will just wave you by. Be polite and deferential—they should let you walk by the palace. Walk slowly and take a quick peek inside at the courtyard, visible from the street, and try to spot the herons around the fountain.