The "Cherveno zname" swim complex in Sofia (Bulgaria) is the biggest swimming venue on the Balkan peninsula. It was built in 1985 to host the European Aquatics Championships.
There are three indoor pools:Olympic swimming pool (50m lane)
children’s pool for beginners
a deep pool for diving and synchronized swimming.
Outdoor pools:lympic swimming pool (50m lane)
a deep pool for diving
It was totally renovated in 2009 (costs: ~6mio Euros).
Over the years it hosted many Bulgarian meets in swimming and synchronized swimming.
Coordinates: 42°40'26"N 23°22'23"E
Swim complex was closed in 2015.