Hi Jim:
Welcome to the forum. Flyfishing is very new in Indonesia so there are only a few flyfisherman here. I'm not a flyfisherman myself, not yet
I think Ujungkulon (Peucang Island, Umang Island) can be apotential fround for flyfishing. Lst month one of our member caught a ot of small trevally in Umang Island, by popper though.