Camp is wrapping up, the pools have a few good weeks left in them, and school is still just far enough away that nobody wants to think about it yet. That in-between stretch of summer can be the trickiest to fill, are we right? Too short to plan a big trip, too long to just wing it every day. We here at The List have thoughts on ways to keep DMV families busy for the next few weeks.Kids Eat Free with the Washington Nationals. Turn a Nats game into a free meal, kids 12 and under get a free hot dog, chips, and water, with vegetarian and gluten-free options available, at designated concession stands throughout the summer. Look for the Kids Eat Free kiosks by Sections 111 and 143, the Nats Snacks stand at Section 229, the Kids Eat Free stand at Section 320, and Arepa Zone at Section 148. Adults just need to scan their ticket with the child present before the end of the seventh inning.National Harbor Kids Day. Every Tuesday at 10:30 AM through August 25, families can head to the Plaza at National Harbor for free weekly educational programming that rotates just enough to be worth repeat visits. Expect interactive storytime with the Prince George’s County Memorial Library System, PBS KIDS activities with WHUT, meet-and-greets with Prince George’s County Police and Fire/EMS, history activities with George Washington’s Mount Vernon, and art exploration around the Wildlife Wonder Boat with the Prince George’s Arts and Humanities Council.Good Kid-i-zen at Color Burst Park. This family morning of interactive games and crafts returns August 22 with a “Storybook Adventures” theme, turning favorite tales into interactive play and featuring the HCPLS Mobile Library. Story time meets playtime, a great one for kids who’d rather act out a book than just hear it.The Playground at the National Building Museum. Open through August 30 in Penn Quarter, this immersive play installation by New York design team Snarkitecture is built from plywood and scaffolding and made for climbing, digging, and moving through. It’s part art installation, part playground, and unlike anything else in the city right now, and let’s be honest, the adults will want in too. Tickets are $19 for adults, $16 for ages 1–17, and free for infants.Storytime Studio at the Hirshhorn. Kids ages 0–6 and their caregivers are welcome for an hourlong blend of educator-led read-alouds, play, and art exploration at the Hirshhorn’s Storytime Studio. Sessions run Wednesdays at 10 and 11 AM on an ongoing basis, with Thursday sessions at 10 and 11 AM added through August. It’s free, no registration required, though capacity is limited and entry is first-come, first-served, so arrive early. It’s a genuinely lovely way to introduce the youngest kids to art and storytelling right on the National Mall.Bluey x CAMP: Bluey’s House. Every toddler in the DMV is currently obsessed with Bluey, and this fall you can walk straight into her world. Opening September 4 at CAMP in Tysons Corner Center, this life-sized, immersive walk-through of Bluey’s house lets families explore every room, play games from the show, dance in the playroom, climb a two-story pillow fort and cardboard castle, hunt for hidden details, and catch exclusive animations, before finishing with a meet-and-greet and photo op with Bluey and Bingo. Bluey-themed merch is available for purchase, and timed entry tickets go every 15 minutes.Ghost Tours. For families with kids old enough to enjoy a good spooky story, Ghost City Tours — the world’s largest ghost tour company, runs haunted history walks, paranormal storytelling, and haunted pub crawls across DC and surrounding cities, led by local guides who know the city’s legends best. A different way to learn DC history, with a chill down your spine.Old Post Office Clock Tower. Atop the Old Post Office building, now part of the Waldorf Astoria DC, this observation deck offers panoramic views of DC from more than 300 feet up, along with exhibits on the history of the landmark building. It’s open to the public Wednesday through Saturday, 9 AM to noon, one of the best views in the city, and it’s free.Sloomoo Institute. All ages, but especially slime enthusiasts, will want to check out this 17,000-square-foot, two-level sensory wonderland opening this summer at Tysons Corner Center. Walk across Lake Sloomoo, slingshot slime, take a slime-making class, build your own creation at the DIY Design Bar with over 4 million combinations, sample exclusive floral scents, and play through the interactive installations. Private birthday parties are available too. It’s the closest thing to a real-life ASMR video, and kids cannot get enough.Hershey Super Sweet Adventure. Making its East Coast debut this year, this interactive journey through the Hershey universe lets candy lovers of all ages celebrate Reese’s Peanut Butter Cups, unwrap the story behind Hershey’s Kisses, master the Twizzlers twist, taste-test Jolly Rancher flavors, and experience an East Coast–exclusive Bubble Yum activation, ending with a grand finale where guests personalize their own Hershey’s Milk Chocolate wrapper with a selfie. For any kid who treats the candy aisle like a museum, this basically is one. Tickets start at $19.99 per person.However you fill these last few weeks before backpacks and bus stops take over again, the DMV has enough going on to keep everyone, kids and worn-out parents alike, entertained until the first day of school. Get out there and make the most of it.