We'll be in Paris for 5 days (2nd week of Oct) and would like to spend one day (probably the Thursday) at DLP. We'll be staying in Paris near the Pantheon, and will have a Navigo card for getting around on the Metro and RER. Are the crowds likely to be fairly light/moderate that time of year? Or not? Also, does anyone know how much one day tickets are at the gate, or should I go ahead and get the one day MINI online?