Lava Tree State Monument is a public park located a few miles southeast of Pāhoa in the Puna District on the big island of Hawaii. The park strives to preserve lava molds of the tree trunks that were formed when a lava flow swept through a forested area in 1790.
Outside of the fossilized tree there is not much else too see. There are some interesting lava tubes and very tall albizia trees that can make for an interesting experience. If you are in the area and would like to learn more about the lava flow, then this is a good stop.
Not widely considered worth going out of your way to see according to reviews and feedback from visiotrs.