The camera pans, slightly blurred, through a garden of cacti. The impression is one of being submerged. Cut. A palm tree at the end of a tunnel view burns a vignette into the celluloid, which segues to the already explored garden of cacti.
Tunnel view of a palm tree. Cut.
The same garden of cacti. Now each spine is sharp. Hobby botanists share their fascination. The camera is choppy.