Advice for high level speaking classes
Looking for some advice for interesting and fun things to do with high-level adult learners, my class is B2+, but there are definitely some C1 students. I tend to do discussions about topics I think they'll find interesting, like we've done marriage recently, controversial ideas, food, etc., but I always find it hard to actually teach them anything because it's such a high-level class, and any errors they do make are so specific that it's hard to catch and address with the whole class, to it usually comes down to skills practice. I've done debates, discussions and a lot of scenario-based role-play games like survival island, but I'm just looking for some ideas to spice up the lessons. It doesn't have to be anything crazy, but anything you've tried that has been a bit different and received positive feedback with a high-level group. Thanks!
Also, this is for a class focused only on speaking, while I can do other stuff, the focus should be more conversational English.