Guide · Safety

Is rafting dangerous? What the grades and guides tell you

Rafting carries real risk, and the size of it depends on the water. Here is how the river grades describe the Ayung near Ubud, when it gets harder, and what you can check before and on the day.

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Editorial team, rafting-ubud.comUpdated October 24, 20267-minute read31 sources

The tour for this guide Ayung River rafting with lunch near Ubud 4.7 (2,435 reviews) 2.5 to 5 hoursBuffet lunch, showers and towelsAges 5 to 65 from$26per person Check availabilityFree to cancel until 24 hrs before your start

In brief

01Dry months: Indonesia Travel rates the Ayung class II and III, with no considerable danger.¹
02Rainy months: When the water rises the Ayung is classed IV, with bigger waves.²
03Swimmers: In class III water, injuries while swimming are rare.³
04Not for everyone: This site's trip excludes pregnancy, heart problems and low fitness.
05On the day: Listen to the safety talk: how to sit, paddle and swim back.⁴

The honest answer depends on the grade

Is rafting dangerous? Any activity on fast water carries risk, and no operator can remove it. What changes the size of that risk is the river itself, and white water has a scale for exactly that. Indonesia Travel, the Ministry of Tourism's site, notes that the International Scale of River Difficulty has six grades.⁵ Wikipedia adds that the scale is neither linear nor fixed.⁶

For the Ayung, the river most Ubud trips run, the same ministry page gives a clear reading. In the dry season it classes the river as II and III: some rough water, some rocks, small drops, but no considerable danger.¹ It adds that basic paddling, with some rafting experience, is enough for the journey at that level.⁷

The picture changes after heavy rain. In the rainy season, when the water rises, the ministry classes the Ayung as IV, with medium-large waves and better skills needed for the sharp bends.² The listing for the trip this site books says the same in its own words: class 2 rapids that sometimes rise to class 4 in the rainy season. So the fair answer is a question back: which month are you going, and how much did it rain this week? Is Ayung River rafting safe on a calm dry-season morning, for a fit adult who follows the guide? The ministry's grading points to a manageable risk, not a negligible one.

Before the first rapid

How the safety part of the morning runs

At the base

Briefing and gear

A safety briefing, then a helmet and a life jacket for each rafter.
Fitting

Straps tight

Helmets and life jackets fully adjusted before the talk.⁸
The talk

Paddle strokes

A short training on basic manoeuvres before you launch.⁹
The talk

If you fall out

Smile, hold your paddle, swim back to the raft.⁴
On the river

Paddle on command

Paddling well keeps you out of the water in the first place.¹⁰

What class II, III and IV mean if you fall in

The scale was created by American Whitewater to rate rivers anywhere in the world, and its wording is practical.¹¹ Class II is described as straightforward rapids with wide, clear channels; rocks and medium waves are easily avoided by trained paddlers, and swimmers are seldom injured.¹²

Class III brings moderate, irregular waves that can be hard to avoid and can swamp an open canoe.¹³ For someone who ends up in the water, injuries are rare and self-rescue is usually easy, though group help may be needed to avoid a long swim.³ This is the level a raft full of first-timers meets on the Ayung in the drier months.

Class IV is a different animal: intense, powerful but predictable rapids that need precise boat handling in turbulent water.¹⁴ Wikipedia's summary of the scale puts the risk of injury to swimmers at moderate to high, and notes that self-rescue may be difficult.¹⁵ If your trip falls in a wet week, that is the level the guides are reading on the river, and their decisions about where you paddle and where you walk deserve full attention.

The river grades

What each class means for a swimmer

Class	Name	The water	If you swim
I	Easy	Riffles and small waves	Slight risk, easy self-rescue
II	Novice	Wide, clear channels	Swimmers seldom injured
III	Intermediate	Irregular waves, hard to avoid	Injuries rare, help may be needed
IV	Advanced	Intense but predictable	Moderate to high injury risk
V	Expert	Long, violent rapids	Swims are dangerous
VI	Extreme	Rarely attempted	Rescue may be impossible

Classes as summarised from American Whitewater's scale; the Ayung sits at II and III in dry months and IV in the rainy season.¹⁶ ¹² ³ ¹⁵ ¹⁷ ¹⁸ ¹ ²

Three levels of water

The Ayung in the grades it reaches

Easiest stretches

Class II

Novice water

Channels: Wide and clear
Swimmers: Seldom injured
Skill: Trained paddlers

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Dry-season Ayung

Class III

Intermediate water

Waves: Moderate, irregular
Swimmers: Injuries rare
Help: May be needed

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Rainy-season Ayung

Class IV

Advanced water

Rapids: Intense, predictable
Swimmers: Moderate to high risk
Handling: Precise

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Decision helper

Should you raft, and when?

Find your situation and read the answer

I am a first-timer and fit I am travelling in the rainy months I am pregnant I have a heart or back condition I worry about the stairs

A dry-season morning

Indonesia Travel rates the dry-season Ayung II and III, with basic paddling enough.¹ ⁷

Keep a spare day

The Ayung is classed IV when the water rises, and plans can change for safety.²

Skip the river

The trip this site books and other Ayung listings exclude pregnancy.

Ask before booking

Heart problems and back problems appear on the listings' not-suitable lists.

Check the climb first

One base gives 300 steps down and 400 up after the rafting.

Classified as class II and III in the dry the season, means that the Ayung has some rough water, some rocks, small drops, but poses no considerable danger.

Indonesia Travel (Ministry of Tourism, Republic of Indonesia)Source 1

Why the same river is easy one day and hard the next

The grade of a river may change with the level of flow, and Wikipedia notes that it usually does.¹⁹ High water usually makes rapids harder and more dangerous, although some rapids get easier when the rocks that form them are covered.²⁰ At flood stage even rapids that are normally easy can hide lethal and unpredictable hazards.²¹

Operators on the Ayung plan around this in different ways. One listing warns that heavy rain may affect river conditions and that the plan can change for safety. Another offers an alternative day when the weather is bad. A third says it runs in all weather conditions and asks you to dress for it.

That variety is worth reading before you book in the wet months. A trip that runs in any weather is not necessarily unsafe, and a postponed trip is not a failure; both are choices the operator makes about the river on the day. What you can do is pick a listing whose policy you are comfortable with, keep a spare morning in your plans, and accept a guide's decision to wait.

Checklist

Safety points to settle

Before you book

Read the not-suitable list of the exact listing
Know the weather policy and keep a spare day
Ask about guide training and first aid

On the day

Helmet and life jacket fitted snugly
Shoes that strap on for the steps
Water before the climb out
Listen to the whole safety talk

Video

Whitewater safety basics, at the river and on the water

The video loads only when you tap play.

Who should not raft, according to the listings

Every listing has a not-suitable list, and it is the most useful paragraph on the page. The trip this site books rules out children under 5, pregnant women, people with heart problems, people over 65 and people with a low level of fitness. It also asks for good physical condition because of the steps to the river.

Other operators draw the line in similar places. The Bali Bintang run rules out pregnancy and back problems. The premium Ayung trip is not recommended for people with heart conditions. Bali Bintang's base-camp trip excludes pregnancy and serious medical conditions.

Indonesia Travel warns that operators set their own terms on age limits and safety rules, and that they may not match.²² If you have a back, heart or joint condition, or you are not sure, write to the operator before you book and describe it plainly. A guide who knows in advance can seat you well, and an honest no at the booking stage is far better than a surprise at the top of the stairs.

Guides, gear and how to check them

On the Ayung, Indonesia Travel describes each raft as carrying safety gear, with a short skills training on basic manoeuvres and an experienced guide on board.⁹ One listing names what that means at its base: a safety briefing, then a helmet and a life jacket, with a guide of over 5 years' experience.

If you want something firmer than a listing's word, ask about certification. The International Rafting Federation, the world governing body for rafting, runs the Guide Training and Education system, which it calls the only globally recognised raft-guide certification.²³ ²⁴ An award is valid for three years, and only when backed by a current first-aid certificate from a course of at least eight hours that includes CPR.²⁵ ²⁶

The federation also accredits operators, through self-evaluation against published standards, a peer review and a site visit by a trained assessor.²⁷ The listings compared on this site do not mention either, so treat a yes as a bonus. A clear answer about guide training, first aid and how the operator handles high water tells you a lot about the base before you arrive.

The safety talk, and why it matters

Before the first rapid there is a briefing, and it is not a formality. An IRF guide instructor, writing for the federation, advises that every helmet and life jacket be fully adjusted before the talk starts.⁸ A loose jacket can ride up when you are in the water; the U.S. Coast Guard says a correctly worn foam jacket fits snugly and does not rise above the chin or ears.²⁸

The same instructor lists what a good talk covers, including what to do if you fall out: smile, hold your paddle, swim back.⁴ It also covers the whitewater swimming position, in which you look around and stay active in your own rescue rather than waiting.²⁹ Listen to how your guide wants you to hold the paddle and where to put your feet, and ask if anything is unclear.

The best protection is paddling well. The instructor's point is simple: rafters who paddle when told stay out of situations where they would end up swimming.¹⁰ Follow the calls from the back of the boat, keep your feet wedged in, and hold the T-grip of your paddle so it does not swing into a neighbour's face. The river does most of the work; your job is to stay in the raft.

The part people forget: steps, sun and the water's edge

The hardest part of the morning may not be a rapid at all. One listing from the Toekad base gives 300 steps down to the river and 400 up after the rafting. The trip this site books asks for water shoes on that walk. Wet steps and flip-flops are a poor pair, so wear something that straps on.

Is white water rafting safe in Bali for someone who rarely exercises? Choose with care. Climbing out of a gorge after a morning in the sun is real work in tropical heat, and the not-suitable lists mention low fitness for a reason. Drink the water the base provides, rest at the landings, and take the climb at your own pace rather than the group's.

Then there is the river bank itself. Trips may pause at waterfalls or calm pools, and some guides pull over for photos when the water allows.³⁰ Rocks there are slippery and the current can be stronger than it looks, so keep your helmet and life jacket on until your guide says otherwise.

Your morning