Anniversary Events

Here's a partial list of the daylong activities at Barton Springs Pool and Barton Creek on Aug. 7 and 8. Check www.sosalliance.org for updates.

Tuesday, Aug. 7

On Barton Creek: Hike, swim, and snorkel the upper Greenbelt. Meet at the Scottish Woods Trail access. BYO snorkel and drinking water. 8:30-11am. Email sosinfo@sosalliance.org to reserve space.

Barton Springs, South Gate area outside pool: Watermelon, refreshments, maps, charts, photos, and other exhibits on the natural, cultural, and political history of Barton Springs and the SOS movement. 5-8pm.

Barton Springs, South Hill, inside pool: Remarks from SOS Coalition members and a range of local voices. 5:30-5:45pm.

Minor Mishap Marching Band, followed by acoustic set by local musicians. 6:15pm.

Screenings of Dean Rindy's 1992 documentary on Barton Creek, Karen Kocher's 1993 documentary, Common Ground, the Battle for Barton Springs, and the Living Springs trailer. 8:30-9:45pm.

Wednesday, Aug. 8

On Barton Creek: See Aug. 7 for place and time.

Barton Springs, South Gate area outside pool:

• An introduction to the Edwards Aquifer Ecosys­tem, by conservation biologist Tom Hayes, and hydrogeologist Raymond Slade. Noon.

• The seeds of the SOS initiative and what it means today, by Brigid Shea and Mary Arnold of the SOS Coalition Steering Committee. 1pm.

• Past and present politics of Barton Springs, by SOS campaign leaders Mark Yznaga and David Butts. 2pm.

• Philosopher's Rock: What J. Frank Dobie, Roy Bedichek, and Walter Prescott Webb mean to Austin past, present, and future, by Bill Bunch. 3pm.

• "The Four Fountain Springs" of Texas and their role in pre-Columbian and contemporary indigenous cultures, by Gary Perez of the Native American Church and the Indigenous Cultures Institute of San Marcos. 4pm.

• Group plunge in Barton Springs. 5pm.