In 1976, Nigel Foster had no idea he would attempt to circumnavigate Iceland by kayak the following year. A chance meeting with a well-known expedition kayaker in the Scottish Isles changed all that. While others scoffed, he made plans, using the technology of the day: calling people on rotary dial telephones, visiting public libraries, consulting travel agents, folding letters into envelopes to be stamped and carried to the mail box. Slowly, as Foster...