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Kai Wa'a · Surfski

Kai Wa'a Vega Arc

Vega family hull with added volume and width for stability. Lower side walls than the Vega and Flex for easier remounts, a slightly wider moulded bucket that still holds the hips, and a sharp nose lowered a little to cut resistance in cross wind and chop. Single-piece prepreg carbon, oven cured.

Length
5.94 m
Beam
51.4 cm
Deck
33.5 cm
Lightest
7.2 kg
 
 
Kai Wa'a Vega Arc, Three-view render of a white and green Vega Arc, on white
Three-view render of a white and green Vega Arc, on white · Paddle Barn (dealer)

Specifications

Length
5.94 m
Beam
51.4 cm
Deck height
33.5 cm (est.)
Category
Surfski
Usually paddled by
New paddlers
New price
A$6,950 · US$4,450

Layup weights

Standard8.5 kg
Pro7.2 kg

On-water profile

Stability
8–10
Dimension estimateLow confidence
Speed
6

Modelled from published beam, length and deck height. Low confidence. Speed is our rating. Both are given at the hull's own design weight. How we rate.

Stability here means how steady the ski feels sitting still on flat water. Where two craft have overlapping ranges, we can't say which is more stable. Downwind handling is a separate thing, covered in the evidence note below.

Evidence note

This band is estimated from published dimensions. Qualitative context includes 2 paddler reports and 9 linked sources.

Suits: Flat water through to bigger downwind days; very stable on the wave and turns easily. A light hull with a lot of volume, so lighter paddlers can get pushed around in wind.

Paddler weight

The estimated sweet spot is 90–105 kg, with a broader estimated guide of 73–109 kg. This estimate is a guide, not a limit. Seat fit, conditions and paddling style matter. Lighter paddlers can still enjoy a larger hull, especially downwind. A test paddle is the best check.

Estimated from hull dimensions using a formula fitted to makers’ own paddler limits. It does not establish the designer’s intended paddler weight. How this is worked out.

Generations

2024-

Kai Bartlett design built by Ozone, released January 2024. Kai Wa'a's novice ski and the shortest, widest of the three Vegas. A new plug rather than a scaled Vega. Standard and Pro layups.

Pros and cons

Pros

  • Very light for a stable ski: hull 8.5 kg standard, 7.2 kg Pro
  • Blue Fin-class stability with noticeably more speed
  • Turns quickly and surfs well; holds a line on the wave
  • Comfortable bucket and a high standard of finish

Cons

  • Wet ride, and the single bailer is slow to empty
  • Light, high-volume hull gets pushed around in wind, more so with a light paddler
  • Rudder lines can chafe and break; a light hull dings easily

What paddlers say

Maui owner, about 82 kg: 'It surfs better than the V-9 for me. Much, much better', with faster wave links in the speed data (surfski.info forum)Reported experience
Reviewer coming from the Flex: 'The Arc felt completely stable even at the wave crest', with a little less wave feedback than the Flex (r/Surfski)Reported experience

Where to buy

Kai Wa'a ↗ Find a dealer ↗

Check the dealer directory above for contacts and ask about model availability.

AUD standard layup from South Coast Paddler (Pro A$7,950). USD standard from Riverbound Sports (Pro US$5,150); Paddle Dynamics lists US$4,250 / US$4,950.

Sources

BetaRatings are estimatesRatings are estimates. How we get the numbers. Prices checked August 2026.