Photos from a recent visit to Hawai'i Volcanoes National Park in the Hawaiian Islands, USA, where the Kilauea Caldera still holds bubbling lava visible from a safe distance a little over a mile/1.6km away. The first photo of the overall Caldera is taken from Keanakakoi overlook, a moonlit photo at 1sec/35mm/f3.3/ISO 1600 to enhance the glow from the lava and the time chosen to avoid the (typically) overcrowded overlook. The second photo is a closeup of the lava surface taken from the same location, with 0.67s/800mm/f6.3/ISO 2500 settings. The image is nearly full frame with a lot of heat shimmer but captures the alien fire-and-brimstone environment. This area has seen a recent increase in seismic activities that have preceded prior major eruptions - although the park officials are not issuing warnings at this time.