You figure you can orient yourself by following the river. Plus, you figure the wetter it is, the more plant or fungus type life there will probably be, and that's where all the best drugs come from, so, there's a shallow embankment over here, and shortly down the blue hardscrabble you are following along the pale blue river as it flows down towards the likely-blue sea. You walk through spindly ground cover plants with spade shaped leaves, and there is a small blue hopping creature that dives away from your foot, and a small blue flying thing like a mosquito that lands on your neck and bites you, kicking waves of pain through your neck and right shoulder. You fall to one knee and the pain is quickly replaced by a warm feeling of incredible pleasure.
You spring to your feet and blink your eyes. The planet isn't all blue anymore! You're looking at more colors than you've ever seen in your life, and nothing here is monochrome. Wild patterning covers every surface but the pure blue sky. But everything makes perfect, clear sense to you.
That bug bite got you high as hell!