If you missed out on this summer’s “no-fee” National Park visits, you still have a teeny, tiny window of opportunity today and tomorrow. And if you decide to pay a visit to your nearest national park, you’ll be doing the same thing the president is doing.

This weekend, the Obama family is visiting the Grand Canyon and Yellowstone National Park to support the park’s summer no-fee program. During their vacation, the president will be promoting both national parks vacations as well as health care reform.

If there’s anything I’m grateful for today, it’s that I don’t have to make speeches when I’m on vacation!

A total of 147 national parks that normally charge an entrance fee will be waiving it this weekend, while the other 244 parks are free year-round already. To find the nearest park in your area, visit the U.S. National Park Service.

Can’t make it to a national park? You can still enjoy this weekend—for many of us, the last weekend before school resumes!—as a family event. Hold a bonfire, create a fairy house, sleep outside under the stars, or simply enjoy dinner outside as a family. It will be cooler before you know it—a blessing for many of us!—so enjoy the summer’s warmth while it remains with us.