Next are two left hand , downhill turns that are called `` Descida do Lago '' ( Lake Descent ) and `` Mergulho '' ( Dive ) . Then there is a short straight section that goes downhill . Reta Oposta is succeeded by a pair of downhill left turns that are called `` Descida do Lago '' ( `` Lake Descent '' ) ( 4 & 5 ) into a short straight sector that goes down again .