Late 80s for the aquabat. They made a stripped out version and a slightly whitewater version with additional buoyancy and better footrests. Used one in the pool and on a river. The volume is quite low which was fun but not great for beginners on moving water.
The cockpit although keyhole shape is very small. Not that easy to get in or out of in a hurry compared to newer boats.
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I’ve been paddling over 35 years now and the site has been around over 20.
Also paddled spuds and owned a Gattino and Gambler. 6ft 2 and no issues getting in the spud even with trainers on.