'Life changing': President Biden asked for favorite national park memories, and they were heartwarming

The 63 national parks across the U.S. attract visitors from across the world. Some to enjoy breathtaking vistas and up-close wildlife, and others to make memories with friends and family or take adventures of personal discovery.

National park-goers shared some of those memories and moments on Twitter this week in honor of National Park Week, which runs through Sunday and is celebrated by the National Park Foundation each April. 

President Joe Biden asked to hear of favorite national park memories in a tweet Wednesday: "America’s national parks are irreplaceable treasures. They amaze us, inspire us, fill us with pride, and belong to all of us in equal measure. This National Park Week, I want to hear about your favorite memory at one of our national parks. Share by replying to this tweet."

Many people responded with photos and memories. Here are some of our favorites:

Twitter user Chris Herbert said a 2017 trip to Yosemite National Park in California was one of the "highlight memories of my life." 

Twitter user @Janjr581 reminisced about camping trips with her husband and three sons at Sequoia National Park in California, and though her husband died in September, "the memories he made with the boys will be with them always."

Kaz Weida's daughter dipped her feet in the water at Glacier National Park in Montana, and a favorite photo was born. 

Staci Ortiz Davis shared photos from a Grand Canyon camping trip in Arizona on the first anniversary of her husband's death with the hashtags #healing #hisrequest and #grief.

Twitter user @mg_boulder shared a photo of her then 7-year-old hiking the Narrows in Zion National Park in Utah on "the best adventure."

@JoJOFromJerz spent summer days at the beaches of Gateway National Park in New Jersey and now takes her own children there.

Ashley Gebb got engaged at Lassen National Park in California during a night hike to watch the Perseids meteor shower. 

Allison Miller Johnson experienced a turning point in a cancer battle on a 13-mile hike in Glacier National Park. 

@showmeadventure called a trip to the Grand Canyon with mom "life changing."

Top-searched national parks by state

Biden wasn't the only one to call out national parks on Twitter this week. Google Trends tweeted out a map that showed top-searched national parks by state over the past two weeks. 

Most of the search traffic came from states in close driving distance to the highlighted parks, for instance, states in the Southwest, including Utah, Arizona and Nevada, searched for Zion National Park in Utah, and states in the Northeast, including, Maine, Vermont, New Hampshire, Massachusetts, Rhode Island, Connecticut and Pennsylvania, searched for Acadia National Park in Maine. 

But Yellowstone National Park, which sits in Wyoming, Montana and Idaho, was the top-searched park for 20 states across the country from as far away as New York and New Jersey.