Coincidental Meeting

My boyfriend, Mark, and I went to Japan in October 2007, and although we travelled there independently, we met up with a small tour group in Tokyo, and travelled around Japan with them for eleven days before we all split up and finished our travels in various parts of Japan independently again. The group were from various locations in the UK, USA and Scandinavia. We are from West Yorkshire in England, and one couple on the trip were Donna and RC from Boulder, Colorado. On our return to England we did exchange photos with them and other members of the group, but then lost touch, and certainly didn't discuss future travel plans or destinations. In September 2009 Markand I went to Lake Bled in Slovenia for a week. On our last day, ten minutes before we were due to leave for the airport, we were having a last look at the lake, and who should we bump into but the same couple from Colorado! They had just arrived in Europe, and after staying in Venice for a couple of nights they had travelled to Slovenia the night before. This was their first outing to the lake and they had literally just got there as we were leaving! We couldn't stop to talk or we would have missed our flight, so the whole thing was really surreal and left me feeling quite weird! (We did exchange addresses and now send each other Christmas letters with details of our year's travels!) I would love to know what the chances are of this happening!