Mason Adventures – Ayung River Rafting
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About
Mason Adventures, founded in 1989, describes itself as one of the pioneers of adventure tourism in Bali, and rafting on the Ayung River was part of its core offering from the start. The company runs what it calls the island’s longest white-water rafting and kayaking trip on the Ayung, starting high in the jungle of central Bali and floating down through steep gorges lined with ferns, waterfalls and carved rock panels.
Beyond rafting, the same company operates jungle buggies, mountain biking, trekking and other experiences, which means its riverside facilities, food and logistics are well developed. For most visitors it is a fun, scenic adventure rather than a hard-core expedition: the rapids are exciting enough to get the adrenaline going but suitable for first-timers.
What to expect
After pick-up and a safety briefing, you are fitted with a helmet and life jacket and walk down to the put-in. Rafts carry a small group plus an experienced guide, who steers and calls out paddle commands. The Ayung here runs through Class II and III rapids, broken up by calm stretches where you can take in the gorge walls and waterfalls. At the finish you climb up to shower and change before a meal. There is also a kayaking option on the same river for those who prefer to paddle their own craft.
Guides are well practised at reading the river and keeping the mood light, often stopping so guests can swim in calm pools or take photos under the waterfalls.
Packages & prices
Mason does not publish rafting prices on its rafting page; rates depend on the package, transfers and any combination with other activities such as jungle buggies. Contact the team or book through the website for a current quote.
- Ayung River rafting – guided raft trip with Class II–III rapids.
- Ayung River kayaking – same river, inflatable kayaks.
- Combos – rafting paired with jungle buggies, cycling or trekking.
- Typical inclusions – equipment, safety gear, guide, facilities and food (confirm when booking).
Safety & requirements
You do not need previous experience, but you should be comfortable in water and able to follow instructions quickly. Keep your helmet and life jacket fastened at all times, hold the T-grip of your paddle, and keep your feet tucked into the raft. Ask about the minimum age for children before booking, and tell the guides about any back or heart problems, pregnancy or recent surgery. Water levels rise in the wet season, making the rapids bigger.
Tips
- Wear quick-dry clothes and secure sandals or water shoes; flip-flops come off easily.
- Leave valuables at the hotel; bring a change of clothes and a towel.
- Waterproof cameras are fine on a strap; phones are best left in the bus.
- Combine rafting with a buggy ride to make a full adventure day.
- Expect a fair number of steps from the river back up to the facilities.
Why we love it
- Founded in 1989
- Class II–III rapids on the Ayung
- Jungle gorge scenery with waterfalls
- Rafting or kayaking options
- Combo days with buggies or cycling
- Good for first-timers
Know before you go
Getting there
The Ayung rafting base is in the hills north of Ubud; Mason's main office is at Adventure House on the Ngurah Rai bypass in Denpasar. Most guests take the hotel transfer, which typically takes 30–90 minutes depending on where you stay.
Location
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