Ive been to Tonga and Fiji. Let me tell you, there is nothing going on in Tonga. very quiet and peaceful place. mostly rocky coral beaches from what I saw. Fiji at least has some beautiful beaches and islands to kite. The wind seems to have an 8 day cycle in winter. you might get it good for a week and it might be glassy. I had 3 really good days out of 8 in August. if you take your surfboard you are covered for a great trip! cheers