akiyoshi cave is located about 100 meters underground in western japan's yamaguchi prefecture.emperature inside the huge cavern stays at 17 degrees celsius all year round. among other sights, visitors can follow a course around a multitude of stalactites called high ak u may czar ra. the formations were created more than 100,000 years ago when lime slowly melted into ground water. >> a city official says more than 110,000 people are expected to visit akiyoshi cave this month. >>> the number of foreign tourists visiting tokyo declined more than 10% in 2009 from the previous year. a tokyo metropolitan government survey found that the number of foreign tourists visiting the city decreased by 570,000 to about 4.8 million. it's the first decline since the survey began six years ago. the survey also shows that foreign visitors stayed in the metropolis for an average 3.6 days, unchanged from 2008, but they spent less money. the metropolitan government attributes the decline to the new influenza outbreak and global financial crisis. however, to ease access to the capital, the number of