Nature's rainbow of colours!
Geothermal volcanic-heated pools: the Artist's Palette (yellow = sulphur, orange = antimony) and Devil's Bath (green = colloidal sulphur & ferrous salts).
'Orange' algae (Trentepohlia) on the trees is actually a species of green algae... with orange pigmentation.
Far from an illusion, this geyser named Pōhutu is the largest active one in the southern hemisphere. In Māori, its name means 'constant splashing' and they aren't wrong. This baby erupts once every hour and can reach heights of 100 feet. Stand back and let it take your breath (and smell) away. 📷: @jonagrey