| 100% | HIKED | 5 | Explored a national park, perhaps |
| 100% | HIKE | 4 | Explore a national park, perhaps |
| 57% | RVED | 4 | Toured national parks, perhaps |
| 56% | ECOTOUR | 7 | National Park vacation package, perhaps |
| 56% | TERMPAPERS | 10 | ... a national park / Major academic assignments |
| 56% | RAINIER | 7 | Volcano in a national park |
| 56% | LITTERED | 8 | Broke a national park rule |
| 53% | GLACIER | 7 | There's a national park named for one |
| 53% | LEAVENOTRACE | 12 | Good motto to follow in a National Park |
| 53% | HIKER | 5 | Person walking along a national park's trails |
| 53% | DENALI | 6 | National park with a caribou herd |
| 52% | ACRES | 5 | Units used to measure a national park's size |
| 51% | MESA | 4 | ___ Verde (Ancestral Pueblo site now home to a national park) |
| 51% | DENALI | 6 | National park with a working sled dog kennel |
| 50% | YELLOWSTONE | 11 | Paramount Network drama that shares its name with a national park |
| 50% | AWE | 3 | State that many are in when they visit a national park |
| 50% | ARCHES | 6 | National park in Utah named for a geological formation |
| 50% | DENALI | 6 | National park in Alaska with a GMC truck namesake |
| 48% | CHACO | 5 | New Mexico's ___ Canyon, a national historic park site |
| 48% | CARLSBAD | 8 | __ Caverns, US national park with a Hall of Giants |
| 48% | ORATES | 6 | Spouts in a park, perhaps |
| 48% | STATUES | 7 | Works in a park, perhaps |
| 48% | STATUE | 6 | Work in a park, perhaps |
| 48% | DOG | 3 | Pet in a park, perhaps |
| 47% | ANT | 3 | Speck on a park bench, perhaps |
| 47% | LEVELA | 6 | Bottom of a parking garage, perhaps |
| 47% | CAR | 3 | Fit in a parking spot, perhaps? |
| 47% | GLACIER | 7 | Montana's ___ National Park (word for a huge mass of ice) |
| 46% | MAR | 3 | National Take a Walk in the Park Day mo. |
| 46% | NATUREWALK | 10 | Activity led by a park ranger, perhaps |