California surfers and lazy vacationers share the black-sand arc of Matanchen Bay near San Blás, Nayarit, Mexico in this vivid 1973 chrome card — a snapshot of the era when word spread through the surf community that Matanchen boasted one of the longest rideable waves on Earth. Rocky outcroppings frame a gentle cove, jungle-covered hills roll to the horizon, and a dozen visitors wade and lounge in the shallows as rollers break in the distance. The writers — Char and Bob — sent this card to friends in Fairport, NY, packed with adventure: they had surfed the bay using a "Klipper" canoe, tried standing on Kim's board ("can't manage to stand up"), mentioned passing through Hermosillo and Guadalajara, and were planning to head to Mazatlán. Postmarked San Blás 27 November 1973 via Par Avion airmail, the card captures the freewheeling spirit of early 1970s independent travel in Mexico.