I've been to nearly every US National Park. Despite having great experiences, I wouldn't revisit these 6.

Although I love national parks, there are a few I don't plan on returning to. Emily Hart

• Over the past decade, I've traveled solo to 59 of the major US national parks.
• Although I've visited some parks multiple times, there are a few I wouldn't return to.

Over the past decade, I've traveled to nearly every US national park solo, many of them multiple times. At several parks, I started planning a return trip before I even left.

However, I've had just as many realizations that I likely won't be revisiting a park, either because it's not for me, it's too expensive or overcrowded, or it's such a bucket-list experience that it's truly a once-in-a-lifetime trip.

Of the 59 major US National Parks I've visited so far, these are the ones I likely won't revisit.