"Hey, since when do we have a river here?" Through the corner of my eyes I saw her gaze at me sceptically. Was it only me who saw it?
"What are you talking about?"
"Right there! Right ahead! Don't you see the coast line and the water? Right in front of you!" Squinting really hard she tilted her head until her eyes widened.
"No way! It looks just like the river back home!"
"What the hell is going on?" I ran further ahead untill I caught sight of the huge metalic truck head, the cargo trailer giving the ilusion of water while the large trees from the parking lot stood poking timidly from behind.
"And there goes the river..." My sister added ironicly as the truck took off down the concrete street.
That was the best natural optical illusion I've ever seen!

