ドラマチック
劇的
area
boil
bubble
cracked
crater
crust
dangerous
dry
energy
field
fog
fumarole
gas
geology
geothermal
ground
hole
hot
hverarond
hverir
iceland
icelandic
krafla
landscape
lava
mist
mud
mudpot
myvatn
namafjall
nature
orange
pit
pot
smell
soil
spring
steam
stinking
stream
sulfate
sulfur
sulphate
thermal
vapor
vapour
volcanic
volcano
vulcanism