Often a maze activity will be collaborative.
Example
The aim of the maze activity is for learners to successfully get the job they want. They have to make decisions about areas such as their CVs, how to prepare for the interview, and what to say when talking to their new employer.
In the classroom
The target language of a maze activity can be the content, such as the example, and it can be the language learners need to complete the task. Learners need to have available functional language for agreeing and disagreeing, making a suggestion, reaching a decision, moving the conversation on, concluding etc.
Further links:
https://www.teachingenglish.org.uk/article/spending-maze
https://www.teachingenglish.org.uk/article/holiday-maze