The weather looks good this week.There is good water right in near Sydney so when i,m looking for marlin i look for bait and just hang in that area all day. I find 23 degrees is my ideal temp for stripe marlin. Around 65 fathoms is a good depth to fish only if it is safe to do so. A good sounder and gps helps to find the bait and to stay in that area as well. Stripe tuna or slimies are the best bait to find.This is only my personal opinion.