Woke up at 6am. Oops missed sunrise. Frantically gathered my gear and jumped in the car. Drove down to the first location. Clouds were not right and there was no reflection. So back in the car I go and just started driving. Looked out window to the right - RAINBOW!! Park car and sprint out to beach. The legs of my tripod were completely seized up from salt crust and would not extend, so low to the ground it was.