Particle position

Hey everyone,
I am new to geant4. I wanted to quickly ask how to find the particle position in the volume I generate. I currently have the post and preposition of the particle, but I wanted to get the position when the particle interacts with the volume. I was thinking of using get hit class. Any help? Thanks
Screen Shot 2021-06-09 at 16.14.26|411x500

Best,
zhy