Hello All
My family (2adults+7yr+11yr)  visiting Paris  in mid of June for 2days. (Coming from ORY )  Reaching on Tue PM. Got airbnb near Eiffel tower.   Planning to finish Eiffel that day evening. However for the past 1month tried booking Eiffel tickets - It is completely booked. Not sure if I will be able to get the tickets .
I have second day nothing planned as such. Need some advice on must see with kids.  Please suggest.
Third day I have to leave to Frankfurt via train. Booked it from Gare de Lyon .  Need to figure out how to go from Eiffel to Gare de Lyon.  
Thanks a lot.