Carnival of colour.
The intense colours of volcanic rhyolite in Grenisgil (lit. Den Canyon) in southeast Iceland come alive after a spell of heavy rain. Also check out the video short below.

Receptacle
5DS, 24-70L f/2.8 II

Cascade
5DS, 24-70L f/2.8 II

Rhyolite colours
5DS, 24-70L f/2.8 II

Grenisgil
DJI Phantom 4 Pro