Question: The airport adjacent to the Cedars immigration detention facility is located how far away from Central London?
Sentence (from "Gatwick Airport"): Gatwick Airport (also known as London Gatwick) (IATA: LGW, ICAO: EGKK) is a major international airport in south-east England, 29.5 mi south of Central London and 2.7 NM north of Crawley.
Relevant evidence: Yes