the jacarepaguá lagoon is located just behind
barra da tijuca, separated from the atlantic ocean by the
urbanized sandbank which became the renowned neighborhood during
the second half of the 20th century.
along its shores were built several important landmarks, still holding a great regional importance.
to the north was the autódromo internacional
nelson piquet, also known as the jacarepaguá racetrack which now
is part of the olympic park.