Ibiza AirportIATA code: IBZ
Proposed scale: maybe 4? perhaps 3.
IBZ (Currently scaled 2) had nearly 8 million passengers in 2017.
Proposed Charm: Vacation
https://en.wikipedia.org/wiki/Ibiza#Tourism"Ibiza has become well known for its association with nightlife, electronic music that originated on the island, and for the summer club scene, all of which attract large numbers of tourists..."