on
this link, the institudo estadual do
ambiente (inea)
provides the
suitability of
several beaches on
ilha do governador, including
praia
de são bento, which is next to praia do belo jardim, and can be used to guess
water quality.
constantly updated, a red
flag means that swimming is not advisable, a green flag
means waters are clean, and a yellow flag suggests using own
judgment.