. The population is 3900. Paeroa is known for its mineral springs which provide the water used in a local soft drink which has become a New Zealand favourite, Lemon & Paeroa. History Captain James Cook explored the Waihou River in 1779, taking a long-boat up as far as Netherton, just a couple of miles from where the town of Paeroa was built 100 years on. The area was briefly explored in October 1826 by Captain James Herd, in command of the Lambton and the Isabella (or Rosanna). Herd was sent on… (More on Paeroa)