Seabourn and Oceania offer Amazon river cruises which are two months or longer. Having said that, you must Take note that these take in far more Places than the river-centric tours provided by Aqua Expeditions or Delfins. General alright but was expecting a bar and snacks from the boat.Normally https://www.getyourguide.com/seine-river-l2601/bateaux-parisiens-cruise-quick-entry-ticket-t193940/?partner_id=KKUE1H6¤cy=USD&travel_agent=1&cmp=share_to_earn