Don't count on it, though there are probably places in town, should you be granted time off, where you can find Wi-Fi. The idea you can update FB at your leisure, much less pop in a DVD, while on course is a bit far-fetched. 18+ hour days will be the norm, and there will always be instructors around that will find you something to do if they perceive that you're underemployed or not pulling your weight.
furthermore, don't bring anything on a course like those you're undertaking that have any sentimental value. You'll be at a premium for space, including and especially the storing of personal items, and the prospect of theft and breakage is quite high.
Woe to you and your family and friends should your instructors find an unattended mobile phone!