Saturday's endurance race will see about 14 boats passing through Tiri Channel, around Kawau Island then up past Leigh, Pakiri and Mangawhai before finishing at Waipu Cove on the beach just north of the surf club.
This is followed on Sunday by the surf-cross event at Waipu starting at 11am where the Thundercats will strut their stuff, and carry out some gravity-defying moves.
Rides will be offered to the public for a nominal fee, if conditions permit.
Thundercat racing is run at surf beaches which provide spectacular jumps, thrills and spills with boats reaching 80km/h in the surf.
Surf-cross races start with a "Le-mans" style start where the driver dashes out into knee-deep water to the co-pilot holding the boat. The teams then battle it out over several laps on a rectangular course running parallel to the shoreline in as little as 300mm of water.
The finish is dramatic as boats skid up the beach for co-pilots to leap out of their boats and run to the finish line.
For more information visit www.thundercatracing.co.nz.
