Youthworks, Crusaders and Scripture Union all run great study camps for year 12 students preparing for the HSC. They all include solid, disciplined blocks of study throughout the day, with a bit of time to reflect upon God and life after school. SU haven’t been running them for as long. Theirs are unique in that they are spread throughout Sydney and NSW and they are non-residential (which = way cheaper!).
Check out the website to find the nearest HSC Lockdown. If you’re a Christian student, this could be one of your last opportunities to invite your non-Christian friends along to something. And remember there’s more to life than the HSC!