回复：请问去黄石公园有哪些景点最值得一游?

You should be able to find a lot of information on the web. Just do a google search on Yellowstone Park. You would find the weather in the area (by the way, at the end of May it should still be a bit cold, “snow is not uncommon” according to Yellowstone website), major tourist spots and detailed map. I made detailed plan down to the hour before I went there and was able to visit majority of the places in two days. I went in August, the weather was gorgeous and everywhere was accessible. There are other beautiful national parks you can visit if you have more time. Grant Teton National Park is at the south of Yellowstone Park. At south Utah, Zion, Bryce Canyon (my favorite), Petrified Forest Park, Lake Powell…it is endless. Why Denver, it is just a city. I wouldn’t waste my time there unless you are catching a flight there. Hey, no matter where you decide to go, travel is always fun, don’t you think?