Due to apparently new regulations in Italy, cruise passengers may only disembark on cruise-sponsored shore excursions and are not at liberty to leave the ship for independent touring. After receiving this information, we cancelled a cruise planned for Oct 4-16. However, I had already purchased four tickets for the Colosseum Underground Guided Tour (English) through Coop Culture. Does anyone know if there is a secondary market likes Craigslist for these kinds of things? Unfortunately the tickets are non-refundable and cost about $40 each, so I'm out of pocket $160. Appreciate any tips for how I might re-sell to recoup my cost. Thankyou!