I'm taking a RS Scandinavian tour on July 10 this year. I'm contemplating taking a 3 hour train trip to Vaxjo prior to the start of the tour, RS doesn't include this site in the tour. Is this an easy day trip, or more than you want to tackle with jet lag?
Easy? Yes, I'd say that. But, three hours one way is very long for a day trip and would be a bit too long for me. I'd suggest spending a night somewhere in the area to break up the trip a bit. But if that is not possible and you really want to go there, it is certainly possible. In that case, book the train tickets soon.