Rio De Janeiro carnival considered the world's largest with approximately two million participants every day.
The Carnival will start on Friday, March 1st and run through a crazy long weekend to Tuesday, March 5th.
The day after is Ash Wednesday when most of the parties are over and the streets of Rio de Janeiro quietly getting back to normal with small ongoing events until the end of the week.
Brazil’s hotel industry is very aware of the power of the “pink” dollar and hotels in large tourist destinations are very gay-friendly.
The Gay area of Rio De Janiero is at Copacabana and Impamena beach and there you will find most of the gay bars and gay friendly hotels.
You can find more info about gay parties during the carnival on The Week website.