The bizarre reason tourists are posting shells and sand to Hawaii places MYSTERIOUS parcels filled with rocks and sand are turning up at post offices in Hawaii. Share: Email ThisBlogThis!Share to XShare to Facebook Related Posts:Passport expiry dates and blank pages: What are the rules in different countries?Great white shark breaches cage and gets up CLOSE and personal with diver in MexicoWould YOU take a secret holiday? Mysterious cruise sets sail into the unknownBaggage fees: THIS is why rip-off charges are GOOD for passengersWould YOU take a secret holiday? Mysterious cruise sets sail into the unknown