I ran an intensive summer and winter camp for high school students. The lessons I used are attached. The same camp was run in summer and winter as we had to use different students for each. There were 16 students in each camp.
To gain entry into this camp students had to write a test to ensure that their English level was high enough for this kind of camp.
The Winter Camp files are more organized than the Summer Camp files.
Please read the notes and change anything and/or everything if you see fit. This camp was one I had to make up all on my own so clearly I am not an expert, I did borrow lessons that were already on my computer from the previous teacher, they are as follows:
English Proverbs, Geography, European Vacation, and Climate Change. I mainly used those as time fillers.
It went over amazingly well with the students as they are a high-ish level.
I hope this helps you if you have to make up an intensive camp of your own. We were allowed to have fun, but it was truly meant as a hard working English improving camp. I must say it really worked.