I will in the Warsaw area in July for 9-10 days for a project but will have the weekends and evenings free to explore. I pretty much know all there is to do there, thanks to Rick Steves and all the other wealth of information online.
Some of the people I'm working with while in Warsaw are heading down to Krakow afterwards. I don't want to spend the entire week in Krakow, and I'm not sure I even want to go there at all. Right now my plan is around 3 days there, and 3 days in Copenhagen before I head back to the U.S. But a part of me wants to spend more time in Copenhagen, and then another part of me wants to check out Gdansk instead of Krakow.
In general I prefer just chilling out on vacation and usually am not as concerned about siteseeing, although I have always been a big fan of castles and art museums. Any thoughts on Krakow vs. Gdansk? Will I really regret it if I skip out on Krakow altogether? Which city is easier to get to from Warsaw?