In summer shorts and a shirt is all that is really needed. We would also recommend light weight long sleeve shirts and long (zip off) pants. Our temperatures can be excessive and this can impact fair skinned people. A jumper/pullover is recommended for the early morning if it happens to get a bit chilly. Swimwear is recommended as there will be swimming opportunities - don't forget a towel! Also bring a broad brimmed hat (not a baseball cap), sunglasses and sunscreen.
Our winter days are generally mild and most of the time you can still wear shorts and a shirt during the day. However, the nights and early mornings can be very cold. You will need to bring warm clothes - long pants, a good jumper, wind breaker, a beanie, scarf, gloves and good woollen socks are recommended.
Regardless of the time of year that you are travelling you will need to bring a hat, preferably wide-brimmed.
You'll also need sunscreen, torch (preferably hands free head light), camera (plus spare fully charged batteries), mosquito repellent (summer), towel, toiletries, any medication required, water bottle (1.5 litre is best). Fresh water supplies for refilling bottles will be available throughout the tour. If you have walking/trekking poles/sticks these can also be handy in some of the undulating terrain.