Berlin (AFP) – Hundreds of Berliners take a dip in the Spree river to protest a 100-year-old ban on swimming in the city’s main waterway. The ban was briefly lifted to allow what organisers called a “swim demonstration”. The ban was put in place in 1925 due to industrial pollution, which now is no longer a problem, but sewage is still periodically discharged into the river when rainfall overwhelms the city’s drainage system.