The 43rd Chess Olympiad comprising open and women’s tournaments is being held in Batumi, Georgia, from 23 September to 6 October 2018.
The total number of participants is 1,667, with 920 in the Open and 747 in the Women’s event. The number of registered teams is 185 from 180 nations in the Open section and 151 from 146 nations in the Women’s section.
The best place to watch it, I think, is the official website.