black and white abstract landscape with people standing crossing on wooden bridge in sunrise lake with fog and hot springs at

abstract acidic area attractions autumn background black blue boardwalk bridge caldron cauldron crossing destination dragons fog geyser hazy hot hydrothermal lake landmark landscape monochromatic mouth mud national natural nature outdoor park people picture scenery scenic sky smoke spring springs standing steam sulphur summer sunrise tourism tourist travel usa view visit volcano walk water white wooden wyoming yellowstone