This is a lovely little weekend break to Paris in August 18-20th, so Friday to Sunday. It's using the Eurostar so great for those in London or easily and cheaply available to connect up to London using the trains, for example Virgin and London Midland have some great early bird offers for London fares. You can adjust the timing of the Eurostar train if you want to leave earlier or later too!
You will stay at the centrally located Ibishttps://www.tripadvisor.co.uk/Hotel_Review-g187147-d197647-Reviews-Ibis_Paris_Gare_de_l_Est_TGV-Paris_Ile_de_France.html
which places you walking distance to many attractions or the metro is close by for ease too if you don't want to walk too much. Last time I went to Paris in August it was so so hot, don't forget suncream and enjoy a picnic with some bread, cheese and wine in the evening nr the tower.
Book 2 nights in the hotel on http://www.booking.com
Book train for two on http://www.eurostar.com