Two helos and a lightie in the circuit, a -8 arriving while the jet was condicting a 10 mile straight in approach to 24. the fly pelican departed just after the jet arrived and a 737 arrived about 5-10 minutes after that. There was also the issue of Evans Head airspace being active with Centre not being sure which was active according to the NOTAM. They advised the Jetstar aircraft that they were about to enter restricted airspace which wasn't NOTAMed and had a lower limit of 5000' anyway. The forecast for the day indicated a north-easterly coming in around 2pm but the wind favoured 24 for the whole time. In case you are not aware, Ballina is short and narrow for jet aircraft and they don't need much tailwind before the numbers don't stack up. So the choice of runway is dictated by the wind not just what everyone else is doing. The icing on the cake is the company requirement to tanker fuel to max landing weight so any tailwind could potentially put that RFFS station to good use. When the Jetstar aircraft departed there was a 172 departing for the northern training area, a corporate that had just landed and was waiting for the bay the Jetstar aircraft was about to vacate, a CT-4 coming in from the west and another lightie coming in from Lismore and overflying Ballina for the Gold Coast. The lightie that was supposedly going to the northern traing area all of a sudden showed up in the circuit ahead of the CT-4. By the time all the lighties were on the ground and Jetstar took off the 737 had taxied out followed by the corporate that had arrived earlier. For RPT jet traffic there is a lot going on at Ballina and as the ATSB reports show the margin of error is not very wide. So I agree that it is busy but I don't agree that as it currently stands, that it is healthy.