The Rancho Bernardo Inn in Sad Diego, Calif., with three pools, two restaurants, a spa, and a golf course, as been offering rooms at $19 a night- if you don’t mind sleeping in a tent. The resort typically charges more than $200 a room. But to help stimulate business during a slow period, guests from…

The Rancho Bernardo Inn in San Diego, Calif., with three pools, two restaurants, a spa, and a golf course, is offering rooms for $19 a night—if you don’t mind sleeping in a tent. The resort typically charges more than $200 a room, but business is down. So from August 16 to 31, guests can get…