I went there last year! They’ve got a lil museum and gift shop inside, and a pretty decent self-guided walking tour around some excavated buildings.

In addition to destroying the Māori village that was there, the tourist settlement nearby, and killing most of the inhabitants of both, the eruption destroyed most of, and buried the rest of the Pink and White Terraces, formed by hot springs

Here are some photos I took while I was there:

Newspaper replica about the eruption:

Māori dirge sung for those who lost their lives:

Diorama of the Terraces:

Excavated hut:

I took about a hundred photos that day, so lemme know if anyone wants to see more!

and an 1884 painting of the terraces, by Charles Blomfield can be seen here