How Raglan (Manu Bay) Works
Waikato, New Zealand · part of the Raglan (Manu Bay) spot guide
Manu Bay is the best-known section of the Raglan point system — a two-kilometre chain of linked left-hand points on a single rock headland on New Zealand’s west coast, and one of the longest left-hand walls on Earth, immortalised in the 1966 film "The Endless Summer." A clean southwest groundswell peels in sequence through Indicators, Whale Bay and Manu Bay.
| Zone | Approx. depth | What happens here |
|---|---|---|
| Outer approach / Indicators takeoff | 12–20 ft | Where wrapping SW groundswell first feels the point and begins to bend; longer-period sets stand up here first |
| Point shoulder / walling reef | 6–12 ft | The boulder reef along the headland that holds the long peeling wall |
| Manu Bay takeoff ledge | 4–8 ft | A ledgy rock step that jacks the wave — hollow on lower tide, fuller on high |
| Inside / boat-ramp end | 2–6 ft | A shallow boulder shelf where the ride tapers, with exposed rock at low tide |
The headland points southwest into the incoming Tasman and Southern Ocean swell. Long-period southwest groundswell refracts around the rock point, bending its crest to follow the shoreline, which converts open-ocean energy into a slow, ordered, downcoast-peeling left rather than a closeout — the mechanism behind Raglan’s reputation. On an aligned day a surfer can connect Indicators through Manu to Whale Bay in one ride of 800 metres and more. The bottom is volcanic rock and rounded boulders, so booties are standard and it is an intermediate-to-expert wave largely because of the rock.
There is no local buoy — the nearest is thousands of km away — so Raglan is forecast off models. Because the swell wraps the point, the breaking face is typically smaller than the raw open-ocean height but far more organised and longer: the point trades height for length and holds size where beaches close out.
Raglan (Manu Bay) wave mechanics — FAQ
Why is Raglan called the world’s longest left?
Manu Bay is one of three linked left-hand points on a single southwest-facing rock headland. Long-period southwest groundswell wraps around the point and peels in order through Indicators, Whale Bay and Manu Bay, so on an aligned day you can ride 300-to-500 metres at Manu alone, or 800 metres and more connecting all three. It was immortalised in the 1966 film "The Endless Summer."
What’s the ideal setup?
A southwest-to-west-southwest groundswell from about 225–250° with a long period around 14-to-16 seconds, open-ocean height around one-and-a-half to two-and-a-half metres, and a light east or southeast offshore wind. Mid tide is the safe all-round choice; drop lower for barrels, go higher for size and to connect the full point.
Is the size number the wave I’ll surf?
No — forecast height is the open-ocean swell height, not the breaking face. Because the swell wraps the point, the face you surf is usually smaller than the model height but much longer and more organised. The point holds up to about 12 feet and keeps producing makeable walls when open beaches close out.