The 45-year-old American announced his plans for Tuesday morning on Twitter a day after landing in the New Zealand city.
Good morning New Zealand! Let's ride Tuesday AM! Cruisy waterfront loop (Tamaki Drive/Cliff Road). 6am Mechanics Bay. See ya there! He Tweeted on Monday.
Initial response on Twitter generally tested positive but some weren't forgetting his past: "Let's ride to get some dope man," one responded.
Armstrong has already ridden along the waterfront with Kiwi Ironman Cameron Brown after landing in the city for the first time on Saturday.
"I watched him for 10 years competing in the Tour de France and it was quite incredible to ride with him," Brown told Newstalk ZB.
Armstrong told media at the airport he'd never been to Auckland before. He said he brought his bike and golf clubs and was planning to do some business.
There is speculation he's in New Zealand to film a commercial.