The San Marcos Activity Center Natatorium is a four foot pool located within the San Marcos Activity Center. This 25-yard indoor pool is heated to a temperature that is consistently between 82 and 84 degrees and is ideal for lap swimming or water jogging/walking. 

No Cotton Clothing in the Pool                 

Rio Vista Pool

The Rio Vista Pool is a seasonal, outdoor pool located within Rio Vista Park. Depth levels vary, ranging from 2.5 feet deep to 12 feet deep. 2022 operational dates are from June 4 - September 4.


  • Monday: Closed
  • Tuesday-Sunday: 1pm-6pm
  • Tuesday-Friday Adult Swim 12pm-1pm

Family Nights

These are extended pool hours to allow families the opportunity to swim in the evenings. Family nights take place from 7pm-9pm on the dates below:


  • June 30
  • July 14
  • July 28
  • August 11
  • August 25

Pool Parties                                      

Pool Parties are rented in 3-hour time blocks from June-August.

  • Fridays: 8:00pm-11:00pm
  • Saturday and Sundays: 7:00pm-10:00pm 

To reserve, visit the ACTIVE net website. Pricing details can be found on our facility pricing sheet.

Daily Youth Entry Fee (ages 6-12)$3.00
Youth Season Pass$39.00
Daily Adult Entry Fee (ages 13 and up)$4.00
Adult Season Pass$53.00
Family Pass

Children 5 and under: Free
Daily Fee must be paid upon entry. Passes can be purchased on the ACTIVE net website.

Swim Lesson Information

Group swim lessons are offered during the Summer season at Rio Vista Pool. Private swim lessons are offered in the Spring and Fall at the Activity Center Natatorium.

Group swim lesson registration for the 2022 season opened May 9. All sessions and levels will take place in the morning. There will be four sessions with the dates and times as follows:

  • Session 1: June 14 - June 24
  • Session 2: June 28 - July 8
  • Session 3: July 12 - July 22
  • Session 4: July 26 - August 5

  • Parent & Tot: 10:00am-10:30am
  • Level 1: 10:00am-10:30am
  • Level 2: 10:00am-10:30am
  • Level 3: 10:45am-11:30am
  • Level 4: 10:45am-11:30am                                 

To learn more about each level and it's learning objectives, please see below.



Level Resident Non-Resident
Parent & Tot $31.00 $38.00
Level 1 $25.00 $38.00
Level 2 $25.00 $38.00
Level 3 $25.00 $38.00
Level 4 $30.00 $44.00
  1. Parent & Tot Lessons
  2. Level 1 Swim Lessons
  3. Level 2 Swim Lessons
  4. Level 3 Swim Lessons
  5. Level 4 Swim Lessons
  6. Private Swim Lessons

Parent & Tot Swim Lessons

Swim Lessons for Parents and Tots is designed for children 6 months to 5 years of age. The program builds swimming readiness by emphasizing fun in the water. Parents and children participate in 8 guided practice sessions that help children learn elementary skills including:

  • Back floating
  • Bubble blowing
  • Front kicking
  • Under water exploration
  • Water entry

Once children can perform basic skills without parental assistance, they may begin level 1.

  1. Jessica Ramos

    Recreation Manager

  2. Alejandra (Ale) Ross

    Aquatics/Fitness Program Coordinator