Brothers Malik Boudreaux, 10, and Meki Boudreaux, 12, enjoy themselves in the lazy river at BREC’s Liberty Lagoon in Baton Rouge last year. The water park, 111 Lobdell Ave., is open from 10 a.

m. to 7 p.m.

Saturday and Sunday. The following is a calendar of community events in the Baton Rouge area from Friday-Thursday, Aug. 22.

7:30 p.m., Highland Road Park Observatory, 13800 Highland Road.

Series covering skygazing tips, physics phenomena, space programs, famous events and celestial histories and possible futures. Evening sky viewings follow at 8:30 p.m.

Also, 7:30 p.m. Saturday.

For ages 14+. Free. .

8 a.m. to noon, Fifth and Main streets, downtown.

Farm-fresh produce, goods, cooking demonstrations and more. . 10 a.

m., Greenwell Springs Branch Library, 11300 Greenwell Springs Road. Swap seeds and plants with other botany enthusiasts.

(225) 274-4440. 10 a.m.

, Irene W. Pennington Planetarium at the Louisiana Art & Science Museum, 100 S. River Road.

Learn about the stars and constellations in the local nighttime sky, followed by an all-ages show. . 10 a.

m. to 7 p.m.

, 111 Lobdell Ave. Slides, pools and other park features. $13, general admission; free, those 1 and younger.

. 3 p.m.

to 6 p.m., Main Library at Goodwood Plaza, 7711 Goodwood Blvd.

Farm-fresh produce, goods and more. . 6:30 p.

m., Jolie Pearl Oyster Bar, 315 North Blvd. Rotating instructors and a variety of techniques.

Free. 6:30 p.m.

, Burgersmith, 18303 Perkins Road. Collect your team and jockey for first place. .

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