Start at the National Museum of the Pacific War now. It’s a substantial complex, so two hours is a brisk visit; with a 5 p.m. closing, head straight in and check the last-admission time at the door. Admission is roughly $25 per adult, but confirm the current rate. Afterward, walk a few blocks to Marktplatz for an easy half-hour loop around the square and a look at the Vereins Kirche, the octagonal building at its center.
Continue along Main Street for about an hour, browsing as you go. Many shops and galleries begin closing around 5 or 6 p.m., so expect a quieter, window-shopping sort of stroll if you’re running late; the compact downtown is easy to cover on foot. Finish at Otto’s German Bistro for dinner—budget about $30–$55 per person before drinks and tip. It’s popular, so call ahead about a table, especially if you’d like to eat soon after browsing.
Leave Fredericksburg early enough to reach Johnson City around opening time; the town’s attractions are close together, so you can park once downtown and explore on foot. Start at Science Mill, a hands-on museum in a restored historic gristmill. Budget 1½–2 hours, and check its Thursday hours and admission before setting out, as schedules can change.
A short walk brings you to the Lyndon B. Johnson National Historical Park Visitor Center and Boyhood Home. Allow about an hour to see the exhibits and the home; ask at the visitor center about current access to the house, since interior access can vary. Then walk over to Pecan Street Brewing for lunch—expect roughly $15–$30 per person. It’s a relaxed downtown stop, but leave time afterward for the drive south.
Drive about 20 minutes to Pedernales Falls State Park and spend 2–3 hours at the river overlooks and on the trails. Check park conditions and reserve day-use entry ahead of time, especially if visiting on a busy Thursday; entry is typically around $6 per adult, with reservation and fee details subject to change. Wear sturdy shoes, bring water, and stay off slick rock when the river is high—swimming and crossing the falls area can be hazardous even when the water looks calm.
No packing list attached yet.