A large-scale adventure-tour company that runs rafting trips along Sungai Ayung (Ayung River) near Ubud, as well as jungle trekking and buggies, mountain biking and helicopter tours.

Mason also operates a 3.5-hectare Sumatran elephant rescue reserve and park, where guests may feed, wash and ride the animals. Lonely Planet does not condone animal cruelty – animal welfare experts claim that unnatural routines (such as ‘performing’) and carrying people on their backs is harmful for elephants.