The whole “see all the volcanoes this year” quest fell off badly over the winter. Let’s see if I make it.
Here’s Onepoto Basin looking one direction… marshy wetlands, and below looking the other way… big grassy park. It also hosts a pond used for sailing little radio controlled sailboats.
Volcano wise, it exploded about 185,000 years ago. It mostly stayed unflooded until the last Ice Age, and then the surrounding lava wall was breached. The floor was raised and leveled in the 1970s to make the park.