"I was one of the architects of a new life-saving team in Auckland in the 1960s and 70s, changing from rescues with reel and line, to helicopter, to RIB inflatable and then fins and tubes. Faster, speedier lifesaving.
"The honour is a tribute to surf life- saving and I'm the first to be honoured in its 102 years."
These days he swims with the aid of fins but he had plenty of kick without them in his 40s when he powered across the rip of the Manukau Heads and, one time abroad, followed in the wake of a literary hero, Lord Byron, in swimming the Dardanelles from the European side to the asiatic Turkey side.
He also channelled his surfer's stamina and desire to help into other forms of community service.
He was the confident, "Westie" pride-raising Mayor of Waitakere (his "eco city") for 18 years - a record of service beaten only by Sir Barry Curtis' 24 years in Manukau.
Undefeated in the polls, he was made redundant by the creation of the Super City in November 2010.
It gave him a breather to update Untamed Coast - his history of the ranges, which sold 30,000 copies.
Becoming Sir Bob will not make him an establishment figure, he insists. "I have always been and will die a liberal. In other words, I look for new ideas. I see the good in people. I am able to get the best out of people."
He and Lady Barbara, a retired midwife, have five adult children.