Unlike the majority of the summer's triathlons that start and finish along Pilot Bay, the Surfbreaker is centred on Mount Main Beach.
Competitors take on the unpredictable surf before the bike leg along Marine Parade and Ocean Beach Rd, and the final road run down Marine Parade ends with a gut busting final sand sprint to the start/finish line opposite Mt Drury.
Organiser Sheryl McLay from Team Shorebreak is delighted Brown will be at the start line tomorrow.
"Cameron is coming and bringing his two young boys, which helps everything. He is looking to retain his title and the boys are in the super sprint races," she said.
"Everything will be the same as it was last year but the only thing we have done is go back to a rectangular swim course. This is one of the few real surf swim triathlons that are left now, as there is no Whangamata this year."
Tomorrow's event, beginning at 8am, is the first of this summer's Eves Triathlon Series, with the Pilot Bay Classic on Monday, January 26, and Coronation Classic on March 1 to follow.
Eves Surfbreaker Triathlon
*Mount Main Beach, tomorrow, 8am start
*Course: Swim - rectangular course on Mount Main Beach; Cycle - Marine Parade, Ocean Beach Rd; Run - Marine Parade, beach finish opposite Mt Drury
*Sprint Distance 750m swim, 16-20km cycle, 5km run
*Sprint Teams 750m swim, 16-20km cycle, 5km run
*Super Sprint 375m swim, 8-10km cycle, 2.5km run