The following is a list of necessities you need to carry on your Bali trip: For the beach and popular party places, wear comfortable, light attire. When visiting religious sites, wear covered, slightly more conservative attire. In Bali, sandals or flip-flops are both suitable footwear options. You'll need hiking boots for the hike up Mount Batur and other outings. Basic medications should be included in a first aid pack. Do not forget to bring your passport, visa, and copies of them, as well as your travel insurance documents and hotel reservation confirmations. If you want to take advantage of Bali's widespread free Wi-Fi in hotels and cafés, bring your devices, such as tablets, e-readers, or laptops.