Maybe you can do some small group reading (use some easy articles, or even a summary thing that you typed up) along with those word puzzles/searches. Then that board game with your target language.
Have them write their own simple story given the target language and sentence structures; just add location and problem that needs to be solved on the board.
there's this activity, requires a lot of reading and prep time on the teacher's part, I've been thinking about using for camp.
Using 5-10 clue/task envelopes and slips of paper with tasks/clues on them, have students complete different tasks in order to find the next clue/task. First team to finish come and show you their work. maybe wins a small prize? There wouldn't be much involvement from the teacher as the students must read and complete tasks on their own to finish.
I'm sorry it's so general, as I haven't really thought anymore about how to implement this.
Hope this helps! good luck!