"CAV OK" is an aviation abbreviation which stands for "ceiling and visibility is OK." It is a sign for the clear blue sky and I'm now starving for it. I have to do a long cross-country flight to Hope before the flight test. Hope is a city in a deep valley and at least 5,000 foot ceiling is required for us student pilots to go there because a steep turn in the valley at low altitude is dangerous. I booked a Cessna this Wednesday for the flight which was canceled because of bad weather. I had the second booking today which was canceled again. This morning I checked the weather on the Internet every hour and the ceiling over Hope had been getting better by the time I left for the airport, but when I checked the weather one hour before the flight, it was the worst figure. "VV008" was the figure which means "Vertical Visibility is only 800 feet." Oh, my god! The weather seems to be teasing me. I made a booking every day for next week, however the weather forecast is saying that the bad weather is to continue for a week. I am regretting not to have finished the long cross country last month.