Like most of Kem Nunn's novels, surfing is part of the atmosphere of TIJUANA STRAITS. His hero Sam Fahey's background includes surfing, among other things (some much less savory), and the novel is set in Southern California. The story begins with a Mexican activist named Magdalena, who has been beaten nearly to death for her efforts on behalf of the environment. Fahey rescues her from her tormentors, and begins a long cycle of redemptive behavior that will culminate in a series of scenes that lend the novel the label literary thriller.