After visiting all 63 national parks in the US, my favorites include Yosemite and Grand Teton. I think Gateway Arch is among the worst parks, though.

After visiting all 63 national parks in the US, my favorites include Yosemite and Grand Teton. I think Gateway Arch is among the worst parks, though.

As someone who's been to all 63, I think Grand Teton, Kenai Fjords, and Isle Royale are some of the best US national parks to visit in the summer.