I spent the night sailing towards Archenar. The southern hemisphere lacks a bright start near the south pole, but it has several around it. The southern cross, the shaft of which points to Archenar, then off to the side opposite side of the cross from the pointers, is Canupus. The true south is about half way between the southern cross and Archenar. It's funny, because the southern cross is depicted on quite a few flags - NZ and Australia, and a couple pacific islands too.
But from NZ at least, you rarely see it directly upright. If you keep reasonable hours and are mainly outside at night during the summer (the other seasons less likely to have clear skys, anyway) then usually you see it on it's side with the pointers verticalish.
The stars are like a 24 hours clock. They slowly rotate through the night (and the day but you can't see that)... as an analogue clock, it would have 24/00 (midnight) at the "top" and 12 (midday) at the "bottom" at the summer solstice. The "top" would slowly rotate around through out the year - as the earth moves around the sun, and the night side, the side away from the sun, points at different stars. At the winter solstice the 12 would be the top, and the 24 at the bottom.
So I sailed towards Archenar, but as the night progressed, switched for Canupus. At 4:51 the southern cross was upside down and I was heading for the Large Magaliinic cloud