The Sumatran Pipeline: a heavy, shallow left on the Krui coast that throws thick barrels from the take-off and punishes mistakes.
Also known as Sumatran Pipeline.
Way Jambu sits on the Krui coast of South Sumatra, a short run south of Ujung Bocur, and it has carried the nickname Sumatran Pipeline for a long time. The name is not marketing. It is a left that breaks top to bottom over shallow coral, throws a thick lip from the moment you stand up, and hands out barrels that most surfers only get to watch from the channel.
Among the dozen or so waves along this stretch, Way Jambu is the one people talk about with a bit of caution in their voice. It is rarely crowded, and there is very little localism to worry about, but that has more to do with what the wave asks of you than with how many people know about it. Everybody knows about it. Not everybody paddles out.
The wave
It works on south and south-west groundswell, and while a south-west angle brings the size, most people reckon it lines up cleaner on a straight south. The take-off is the whole story. You are dropping in front of very shallow reef with the lip already pitching, so there is no feeling your way in. Make it, and the wave turns and spits down the line. Miss it, and the section shuts across the reef.
On the right day it runs a long way, with rides of well over a hundred metres and several barrel sections strung together. It handles head high through to double overhead, and around the four to six foot mark is where it does its best work. It is worth knowing that it consistently looks smaller from the beach than it feels once you are sitting in the take-off zone.
Tide changes it completely. Mid to high on the push is what you want, with enough water over the coral to give you a margin. Drop the tide and the end section goes desperately shallow, dry in places, and the wave starts closing out rather than running. South-east trades hold it offshore through the dry season, which is when this coast is most reliable.
Conditions at a glance
- Wave type: Left-hand reef break
- Best swell: South to south-west groundswell, best on a straight south
- Best wind: South-east to east, the dry season trades
- Best tide: Mid to high on the push
- Best size: Head high to double overhead, best around 4 to 6ft
- Season: April to November, most reliable May to October
- Crowd: Rarely crowded, and localism is not really a factor here. The wave itself does the filtering, so you will often share it with only a handful of surfers.
- Where: Krui coast, Krui, South Sumatra
Who it suits
This is an expert wave and we would rather say that plainly than dress it up. If you are not confident taking off under a thick lip over coral you can stand on, Way Jambu is not the place to find out. Boards get broken here regularly. People get hurt here regularly, most often on smaller days and lower tides when the reef is closest to the surface and the wave looks manageable.
Intermediate surfers are far better served elsewhere along this coast. Ujung Bocur down the road is long, forgiving by comparison and will give you a much better week. Even strong surfers should sit and watch a few sets before paddling out, work out where the boils are, and go on the push rather than the drop. There is no shame in giving it a session and deciding it is not your day.
How to surf Way Jambu with WaveBorn
Jenny's Bamboo Surfcamp is our base for this coast. The camp sits at Krui with four waves breaking out front and around twelve named breaks inside scooter range, and Way Jambu is one of the ones you ride down to rather than paddle out to. It is a run south along the coast road, past Ujung Bocur, and the trip is short enough that you can go and look, then come back if it is not on.
That flexibility matters more here than at most waves. This coast is reliable through the dry season, but Way Jambu is fussy about tide and swell direction in a way the waves around it are not, so plenty of days it will be the wrong call while something else nearby is good. Staying at Krui means you are not committed to one break for the day. Our family have surfed this stretch for years and the honest advice is to watch the swell and tide charts, be ready to move at short notice, and take the good windows when they line up.
Trips that reach it: Jenny's Bamboo Surfcamp .
Nearby breaks
Way Jambu sits within easy reach of Ujung Bocur, Mandiri Beach, Krui Left and Jenny's Right , which is what makes this part of the archipelago so productive: if the wind or swell does not suit one reef, another is usually working a short ride away.
Conditions here are a guide, not a guarantee. Our crew reads the swell, wind and tide each morning and puts you on the break that matches your surfing that day. See the full Mentawai surf spots guide or browse every break we surf.