Went to the volcano national park on Big Island. Went there to see some flowing lava, but that was the wrong place for that.
The park contains old lava fields and volcanoes, but it's too far to walk to the active one. It will take hours and hours to walk there. The active one is actually very close to where we live, so we thought about going there after the volcano park, but it started to rain too much. Will try again tomorrow.
The volcano park is still a trip well worth to take, you can take some very nice photos there. It can however not measure up to what you can see on Iceland.
The best thing was to walk around in a lava tube, and walking on a lava field that had destroyed one of the coastal roads.