 For the 1980 Summer Olympics held in Moscow, the estuary to the Gulf of Finland at Tallinn Bay hosted the sailing events.As part of the Tallinn water supply system, the Pirita is impounded into the Paunküla and Vaskjala Reservoirs.The reservoir in Vaskjala is connected over a canal to the Lake Ülemiste in Tallinn, where the Ülemiste Water Treatment Plant is situated.