Bring a camera to capture the spectacular cascades of Ton Sai Waterfall. If it's raging, you may be able to feel the mist on your skin.
When you've spent some time at this Thep Kasattri cascade of water, why not check out Bang Rong Pier, Ao Po Grand Marina, and Phuket Elephant Sanctuary? They're not far from Ton Sai Waterfall and also a favorite with tourists.