We recommend the following: 1 pair of long trousers, 1 light but waterproof jacket (Nothing too thick!), Simple padlock to lock up your belongings, 1 long sleeved top, 1 electrical converter (to avoid blowing out that hairdryer or beard trimmer), Shoes that are suitable for hiking, Waterproof shoes if you have them, Shoes that are easily removed. (Upon entering temples and many buildings you will be expected to remove your shoes as a sign of respect. The easier, the better.), Swimwear, A camera is highly suggested to remember your experience, Insect repellent, Sunscreen. Lots of sunscreen And of course, the usual: passport, spending money, adventurous curiosity, positive attitude, etc