Jervis Bay is such a beautiful place (bias because I live there) but it's a pretty chill place, nothing like the goldcoast/byron. Partying wise i suggest in your house (wherever you're staying), Greenfield's beach (because of its seclusion) or the Husky pub. For touristy things be sure to check...
For me the first term was a bludge, I didnt do anything because I already knew what I wanted to do but I never got around to buying the fabric until the summer holidays. Big mistake.
Know what you want to do, buy the fabric/pattern talk to your teacher about it all first and have a plan of...