Notes

Carl and Ellie, who meet as little kids in an abandoned house. Carl is a short, quiet, dorky-looking boy, while Ellie is a fast-talking little girl who constantly rambles about crazy adventures, treasure-hunting and exotic travels.
Carl marries Ellie and they begin rebuilding the old house, making it their home. Ellie becomes a tour guide for a zoo and Carl becomes a balloon salesman, working side-by-side. They go through many stages of their life together (at one point expecting a child, but discover that Ellie is infertile and could not have children, so both Ellie and Carl burst into tears after hearing the news) and dream of going to Paradise Falls in South America. So they decided to save up some money, but unforeseen events (a tire blows out, Carl breaks his leg, a tree crashes into the house and breaks the roof during a storm) force them to use the money they had been saving. Carl and Ellie grow old together, working at a zoo selling balloons and giving tours respectively. While cleaning the house, Carl notices the picture of their house perched at the top of Paradise Falls, after tucking the savings jar away and leaving the trip out of mind. Carl then goes to buy tickets to Paradise Falls (presumably with retirement money). He then takes Ellie on a picnic, bringing the tickets as a surprise for her. While climbing up the hill where they had spent so much time before,