▁fe eds ▁the ▁res er voir ▁is ▁about ▁one - six th ▁the ▁land ▁size ▁of ▁Singapore , ▁making ▁it ▁the ▁largest ▁of ▁all ▁the ▁Singapore an ▁res er voir s . ▁Two ▁of ▁the ▁island ' s ▁most ▁notable ▁rivers ▁- ▁the ▁Singapore ▁River ▁and ▁K all ang ▁River ▁are ▁part ▁of ▁the ▁res er voir . ▁The ▁G ey lang ▁River ▁and ▁the ▁Ro chor ▁River , ▁both ▁trib ut aries ▁of ▁the ▁K all ang ▁River ▁form ▁part ▁of ▁this ▁res er voir ▁as ▁well . ▁ ▁The ▁res er voir ▁was ▁a ▁competition ▁ven ue ▁for ▁the ▁ 2 0 1 0 ▁Youth ▁Olympic ▁Games , ▁where ▁the ▁can oe ing ▁and ▁row ing ▁events ▁were ▁carried ▁out . ▁ ▁History ▁{ ▁▁ ▁" type ": ▁" External Data ", ▁▁ ▁" service ": ▁" ge os hape ", ▁▁ ▁" ids ": ▁" Q 6 7 6 3 8 9 6 ", ▁▁ ▁" title ": ▁" Mar ina ▁Res er voir " ▁} ▁ ▁With ▁the ▁recent ▁completion ▁of ▁the ▁Marina ▁Bar rage ▁in ▁ 2 0 0 8 , ▁the ▁newly ▁created ▁Marina ▁Res er voir ▁is ▁a ▁choice ▁ven ue ▁for ▁a ▁wide ▁range ▁of ▁water - based ▁activities ▁including ▁hosting ▁the ▁can oe - k ay ak ▁and ▁row ing ▁events . ▁The ▁area ▁includes ▁a ▁one - kil omet re ▁straight ▁race ▁course ▁for ▁can oe ing ▁and ▁row ing ▁activities . ▁The ▁Singapore ▁C ano e ▁Mar athon ▁ 2 0 0