Sign your dad up for a Pioneer Gun Class out so he can learn how to load and shoot replica flintlocks and percussion rifles that date back to the time of the Alamo at George Ranch Historical Park. Classes will be held at 10:30am, 12:30pm or 2:30pm and are included in general admission cost. How to Get Vaccinated & Safely Lose the Mask With the CDC's announcement that most fully vaccinated people can go maskless indoors and out, many Houstonians are safely returning to normal life and activities. The safest way to enjoy this and many other events around Houston is to get vaccinated from COVID-19 infection. Many vaccination sites across the city are allowing walk-ins, including at NRG Park and all Houston Health Department sites. Find the nearest site, including major pharmacies, by texting your ZIP code to GETVAX (438829) in English, or VACUNA (822862) in Spanish. Admission Tickets are $15 for adults ages 13 to 64 $10 for children ages 2 to 12 and $12 for seniors ages 65 and up. Learn more.