At least 30 boats of all sizes are taking part in a parade protesting the contamination of Rio de Janeiro's Guanabara Bay where sailing events will be held next year during the Olympic Games in Brazil.

Sailboats, schooners, tourist boats, canoes and fishing boats are making a 7-mile (12-kilometer) round trip from the Marina da Gloria on Guanabara Bay to Urca, a neighborhood located at the foot of Rio's iconic Sugarloaf mountain.

The Living Bay organization organized the event.

It says in a statement that athletes train in the bay under precarious conditions and that the bay must always be in good condition regardless of its use in large events like the Olympics.