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1. Hot tub and swim spa expo opens for the weekend
The H-E-B Center at Cedar Park is open to the public for the Swim Spa and Hot Tub Blowout Expo all weekend, starting Friday afternoon. 3-8 p.m. (Friday), 10 a.m.-7 p.m. (Saturday), 10 a.m.-5 p.m. (Sunday). Free. H-E-B Center at Cedar Park, 2100 Avenue of the Stars, Cedar Park. 512-600-5000.

2. "Harry Potter" film screened by the poolside
Leander Parks and Recreation Department presents a showing of "Fantastic Beasts & Where to Find Them," the latest "Harry Potter" film, along with an open swim session. 8 p.m. (swim), 8:45 p.m. (movie). Free. Robin Bledsoe Pool, 601 S. Bagdad Road, Leander. 512-528-9909.


3. Glenn High School holds open house
Glenn High School is holding a community open house for area residents featuring a football scrimmage, pep rally and tours. A new fight song and alma mater will be announced. 8 a.m.-1 p.m. Free. Glenn High School, 1320 Collaborative Way, Leander. 512-570-1400.

4. Class teaches concealed carry permit requirements
Attendees at the 5 1/2 concealed carry course learn information and tips necessary to apply for a Texas license to carry handgun. 9 a.m.-2:30 p.m. $99 (class), $15 (range fee). Permit fee not included. La Quinta Inn & Suites, 1010 E. Whitestone Blvd., Cedar Park. 866-371-6111.

5. Senior expo set to take place in Cedar Park
Treasure of the Hills, Cedar Park’s senior activity center, hosts a senior expo with vendors and giveaways. 9 a.m.-1 p.m. Free. Cedar Park Recreation Center, 1435 Main St., Cedar Park. 512-331-6000.

6. Relay For Life kicks off at Champion Park
The American Cancer Society Relay For Life of Williamson County and North Travis County hold a kickoff event to provide community members with information about the society’s programs and Relay For Life walk, which will take place Oct. 7. 10 a.m. Free. Champion Park, 3830 Brushy Creek Road, Cedar Park. 626-676-0377.