Airports are located in Walla Walla (11 miles east of park), Pasco (45 miles west), and Pendleton, Oregon (45 miles south).
Driving directions from Walla:
- Turn west onto Highway 12
- 7 miles west of Walla Walla, turn left (south) onto Swegle Road (look for brown park signs)
- Go over railroad tracks and then a bridge (less than 1/2 mile)
- Turn left onto park entrance road, which is immediately after bridge
- Road ends in circular parking area in front of the Visitor Center