The environmental organisation Sustainable Coastlines is holding its charity ball Let’s Get Cleaned Up on October 4. The event takes place at the Hilton Hotel on Princes Wharf from 7pm and it includes a three-course meal, drinks and performances by the Hipstamatics, Peter Urlich and DJ Murry Sweetpants as well as free entry to the official after party. You can purchase early-bird tickets for $140 until 5pm on September 11. From then on tickets are $155. You can also book a table of 10 for $1350. Go to sustainablecoastlines. org for more information.