It has become a tradition for visitors to Thingvellir national park in southwest Iceland to toss coins into the water-filled fissure Flosagjá, or Peningagjá (“Money Fissure”), for good luck. Recently divers discovered credit cards in the water...some of the credit cards were still valid. The cards were both Icelandic and foreign.  Divers clear out coins and rubbish tossed into Peningagjá regularly on behalf of the management of the national park.The first coin was tossed into the water-filled fissure by King Frederick VIII of Denmark on his visit to Thingvellir in 1907.