A rafting adventure on a river by boat or on car tyres. “ River Wild”, no Meryl Streep, sorry.
A cooking course, with special Balinese dishes. Sometimes prepared with medicinal herbs. You eat what you prepare.
A language course in Bahasa Indonesia. Basic skills to start communication with locals.
A camping experience. Ever thought of that, sleeping in a tent in Indonesia?
Eco trekking through forests, paddy fields and up and down mountains. Walking or cycling.