Very obvious visuals, everything looking curved and/or warped patterns and kaleidoscopes seen on walls, faces etc. Some mild hallucinations such as rivers flowing in wood grained or "mother of pearl" surfaces. Closed eye hallucinations become 3 dimensional. There is some confusion of the senses (i.e. seeing sounds as colors, etcetera). Time distortions and "moments of eternity".
This describes the first in a series of organized trips to outstanding natural places around California and the Western US: The Kelso Sand Dunes, Humboldt Redwoods State Park, Death Valley, the Lost Coast, Evolution Valley in the Sierras, Zion Canyon Utah.