Please meet outside the metro Saint Germain de Prés (exit 1 - Church side). It's right next to the Crêperie de St-Germain (the green stall on the corner). If you are coming by taxi the best address to give is Place Saint Germain des Pres, then walk round the corner.
We will finish at the viewing point of the Eiffel Tower at Place de Trocadero