The organization committee of the 21th WCSS,  in partnership with Gray Line Brazil, is pleased to offer to all participants of the Congress access to the many tourist attractions available in Brazil, before, during and after the event. In all, we have 228 possibilities of tours, including those of Rio de Janeiro city and several others in the country. The tours reserved by participants of the event will have an additional discount of 5%. To get this discount, just enter ACTIVIA5 in the promotional code. There is no requirement for a minimum number of participants. Enter the Gray Line Brazil website and see the special opportunities that we have prepared for you.