I agree 100% enjoy your time off with family or friends, but if you are dying to get a head start on podiatry material you could start with this iOS app:
(spam link removed)
You need to know lower extremity anatomy for the rest of your career so getting a background early will help with long term retention. So if you really want to gun you can start learning the different bones and landmarks and then you could move on to the muscles. Take one diagram section at a time and for each muscle learn the origins, insertions, actions, nerve and vascular supply then take the quizzes on that muscle section.