Just because Bali is a well-trodden Aussie destination doesn't mean you don't have to do your destination homework. Here is some helpful information to get you started.
As an Indonesian island, Australian passport holders must be granted a visa in order to enter Bali. 30-day tourist visas can be applied for upon arrival or even onboard your flight (depending on your airline) and require a fee of US$25. Please be aware that these requirements and travel conditions can change at any time. For more up-to-the-minute information please refer to your closest Indonesian embassy.
The currency in Indonesia is the Indonesian Rupiah. The exchange rate between the Australian Dollar and rupiah can change regularly' so in the lead up to your Bali holiday, it's a good idea to monitor the exchange rate and purchase your currency when the rate is at its best.
For some, the highlight of a Bali holiday is the food. Generally though most holiday goers to the island will leave without trying a traditional Balinese dish, instead eating common Indonesia and Chinese dishes sold in most of the restaurants and street stalls. If you're adamant on trying the genuine article, consider joining a food tour or cooking class to get a sense for Bali's traditional flavours. For the most part these include spices and herbs like cumin, coriander and nutmeg as well as chilli peppers, fish paste and palm sugar. Traditional dishes to look out for on the menu include chicken curry called Opor Ayam and Tuna Sambal Matah, a dish of seared tuna served with shallots, chilli peppers, lemongrass, ginger and lime juice.
Nightlife in Bali is mainly focused around the Kuta and Seminyak area. Kuta in particular is a hive for good times with parties starting late (around 1am) and going until sunrise. As a tourist hub, nightlife in Kuta is relaxed and rowdy, with live music and DJs getting the dance floor going with international tunes. Backpacker nights are also common, offering happy hours, foam parties and themed nights ideal for getting to know fellow travellers. For something a little more sophisticated, the boutique bars of Seminyak provide a more lax option. It is important to note that while in Bali you are subject to abide by Indonesian law. Please be mindful that illegal substances here are strictly governed and hold severe punishments.