Pontikonisi is a very small island placed a little bit south from Corfu town, just in front of the airport and Halkiopoulos lagoon. 
To reach Pontikonisi you have to take a local boat that leaves from the small pear next to the monastery of Vlacherna, in the southern point of Kanoni peninsula. 
Pontikonisi is extremely small, covered by Mediterranean vegetation and with an ancient Byzantine church. 
Some white stairs will lead you to the small Pantokratoras church, where you can see marble gravestones of the XIII Century in commemoration of the Austrian empress Elisabeth.