I will be in london for a week in April with my 11 year old visiting my 21 year old (both boys) who is studying there for a semester. My husband will be there for a few days on business. He has to see a customer in norwich and I was wondering if the boys and I go along in the car, is there a place to see along the way that he could drop us off at and p.u. on his return after business meeting. (all in same day).. Boys would love to see a castle or something else cool. I am also taking two boys on train to paris for an overnight. Any recommendation on reasonably priced hotel in paris. Is it a big mistake to go to paris on sat. and return on sun. (crowds). Should we arrange a tour in paris and if so any suggestions. Thanks so much. I am not a seasoned traveller so want to plan a lot in advance for an enjoyable experience.