Yes, you can – as long as your vacation does not occupy an extended period of time. All participants should as far as possible be present for all 10 weeks of the course seeing as you are a part of a team that has to solve a task together. But if you have planned a week of vacation, we will figure out a solution. If you are gone for an extended period of time though, it will not do – you will miss out on too much and that will not be ideal for you or the team.