While browsing through Google Maps, I struck on São Tomé e Príncipe, an island country which seems like a very interesting destination. I immediately started looking for ways to get there. This seems to be very challenging. So far I only found one option, which is TAP that connects Lisbon with Sao Tome. Not only is the connection quite expensive, it is also quite infrequent (1 option in August).
How can I get to Sao Tome?