From the Domain gates on Whitaker St, walk through the park up to behind the Mineral Spa building. From a depth of approximately 70 metres, the Geyser provides a source of crystal clear hot soda water and geysers at around 40 minute intervals.

It is named after the Maori chief, Mokena Te Hau who once owned the Domain land. His memorial Cairn is next to the Gazebo, formerly the No.8 Drinking Fountain .

Walking time: < 5 minutes round trip
Difficulty: Easy