Henry Moses Aquatic Center

Contact Information

Each summer the Henry Moses Aquatic Center (HMAC) experiences a wave of visitors as nearly 75,000 people come through the gates to enjoy an assortment of splish-splash activities.

Opened  from mid-June through Labor Day and located in the Northeast corner of the Cedar River Park, the HMAC offers a multitude of camps, lessons, programs, and special events that intertwine fitness and water play to create an enjoyable and relaxing atmosphere.

Through our diverse audience a variety of suggestions have been made in regards to the operations of the park. By analyzing these comments from past seasons, modifications have been implemented that we’re excited for you to experience. We will continue to collect feedback throughout the 2019 season as we strive to improve your experience at the HMAC.

Hours and Rates

As you can imagine the HMAC is a popular destination during the summer and at times maximum capacity may be reached. Due to fire code, the HMAC will halt admission when maximum capacity is reached.

General Admission sales begin at 9 a.m., all sales are final, good for day of purchase only, and refunds will not be issued for unused tickets. . The maximum general admissions per guest is 25 and no refunds will be available for unused tickets.

Rain checks will not be issued unless the aquatic center is closed due to inclement weather. If weather is cold, overcast, rainy and/or windy and attendance is 25 patrons or less, the HMAC will close the lap pool and the remainder of the park will be open.

Additionally, General Admission does not include Mid-Week Dip or Friday Night Lights which may be purchased separately.

In order to receive the resident discount admission price, proof of residency is required.

2019 Fees per Session


  • Under the age of 1: Free
  • Ages 1 to 4: $4.50
  • Ages 5 and above: $8.50
  • Lap Swim/Water Walking: $3.00


  • Under the age of 1: Free
  • Ages 1 to 4: $8.50
  • Ages 5 and above: $15.00
  • Lap Swim/Water Walking: $4.50

Friday Night Lights

  • All ages: $5.00

Mid-Week Evening Dip

  • All ages: $3.00

Season Pass

A season pass holder will enjoy all the amenities within the HMAC at a discounted rate. Entry into the park for season pass holders occurs within the first hour of every session up to fire code capacity. After the first hour, all tickets become general admission tickets. Season pass prices offer a cost effective option versus daily general admission rates. Season pass holders will have access to enter the park through the Season Pass Ticket Line which is open the first hour of each swim session. During days of low attendance or inclement weather the Season Pass Ticket Line may be closed and season pass holders will enter through the general admission gate with priority in line.

Season passes are offered on an individual basis, are non-refundable, and are non-transferable. Our season passes can be purchased in person or online. To make purchases in person, visit the HMAC or any of the three community centers. Purchases online can be made through PerfectMind. NOTE: If a purchase is made online the season pass will need to be picked up at the HMAC or Renton Community Center.


  • Under the age of 1: Free
  • Ages 1 and above: $60 + Tax
  • Lap Swim/Water Walking Only: $37.00 + Tax


  • Under the age of 1: Free
  • Ages 1 and above: $120.00 + Tax
  • Lap Swim/Water Walking Only: $55.00 + Tax

Please note that admission to the following Special Events is not included with the purchase of a season pass;

  • Movie Night
  • Saturday Night - Special Events

Swim Lessons

HMAC strives to educate youth in the development of fundamental swimming skills. Lessons vary depending on the current skill level and age of the student; students must reach the minimum age by the end of the session in which they are enrolled. Please select a class that is based on the conservative side of the student’s skills. Lessons are taught in group, semi-private, or private sessions. 
Registration begins on May 23, 2019. 

Camps, Programs, and Special Events

HMAC continues to provide quality camps and programs for the public that includes lap swim, lazy river water walking, junior lifeguard day camp, and in partnership with the Renton Rowing Center the Row, Paddle, Play Day Camp. Special events also make a huge a splash with everyone including our tail-wagging family members who get two days to frolic about during the Pooch Plunge. HMAC will also host one of the Summer Outdoor Movie this year; How to Train Your Dragon: The Hidden World. This will be a great time for you to gather with friends and family for a movie under the stars!


  • Junior Lifeguard Day Camp 
  • Sports and Splash Camp
  • Row, Paddle, and Play Day Camp


  • Friday Night Lights
  • Mid-Week Evening Dip 
  • Lap Swim
  • Lazy River Walking
  • Water Exercise
  • Half-Pint Splash-n-Play

Special Events        

  • Teen Night
  • Adaptive Swim
  • Summer Outdoor Movies
  • Pooch Plunge

Party Tent and Group Rates

Looking to make a big splash on a special day? Let the HMAC provide the location with a party tent! Two options are available for reservation during the 2019 summer season. If a tent is not a priority for your crew and you prefer so soak up all the vitamin D, group rates are also available. Party tents and group rates guarantee admittance into the aquatic center as the number of guests associated with the reservation are taken into account prior to opening.

Reservations can be made in person at the HMAC or at any of the three Renton community centers. Online bookings for the party tents or private parties can be made through PerfectMind. We require at least one business day in advance of your booking date, and availability is a first come first served basis. 

Party Tent #1

10'x 20'
Admittance for up to 25 guests
Resident: $310 + Tax
Non-Resident: $475 + Tax

Party Tent #2

Admittance for up to 15 guests
Resident: $200.00 + Tax
Non-Resident: $300.00 + Tax

Party Tent #3

10'x 20'
Admittance for up to 25 guests
Resident: $310 + Tax
Non-Resident: $475 + Tax

Group Rates

Groups of 10 or more
Resident: $10.00 per person
Non-Resident: $16.00 per person
Group must have at least 1 supervising adult per 10 children

Supervisors must actively supervise the group
All ages (including children under the age of 1) are included in the total number of admissions
For groups exceeding 10 or more participants please contact Brandi Burke at 425-430-6712 for large group guidelines. All large groups will be required to wear pennies or same colored shirts while in the park for identification and safety.

Private Parties

In addition to the party tents, private party rental packages are also available. Let the HMAC provide the location for end of the school year parties, corporate events, family reunions and more! With pool lighting, the entire aquatic center is available Saturday and Sunday evenings and accommodate up to 500 people including non-swimmers.

Resident: $1,800 + Tax (Sat or Sun)
Non-Resident: $2,300 + Tax (Sat or Sun)

For further details on private parties please contact Brandi Burke at 425-430-6712.


The water amenities are plentiful at the HMAC, and our 15 water features include a six-lane lap pool, a wave pool, two 26-foot tall water slides, and a lazy river! Smaller splashing awaits you in the leisure pool that contains a toddler water play area, an island lagoon, numerous spray features, and zero-depth entry.

Large sun and shade spaces are available for all your lounging needs, as well as a bathhouse for that pre and post rinse off. Rentable lockers (.25 cents each) are available for safe keeping of those items that wish to remain dry. A limited selection of swimming accessories are available for purchase in the admissions area. Guests may also enjoy a variety of snacks and beverages that are available from the Shark Bites Café.

Rules and Regulations

General Information

  • Participants 12 years of age and younger must be supervised by someone 16 years of age or older.
  • Everyone who enters the facility must pay the appropriate fee.
  • City of Renton residents must be able to prove residency or non-resident rates will be charged.
  • Participants must wear wristbands at all times. Wristbands may be used to exit and re-enter the facility during the same session.
  • The City of Renton is not responsible for personal items.
  • Small coolers are allowed in the facility; however, glass containers, lawn chairs, beach umbrellas, wagons, and barbeques are not allowed.
  • Water toys such as noodles, water wings, balls, air mattresses, and inner tubes are not allowed. U.S. Coast Guard approved life jackets are the only devices permitted.
  • Pets are not allowed.
  • Food or drink is not allowed within five feet (5') of the water.
  • Alcohol and tobacco are not allowed.
  • When thunder and/or lightening occur, the water will be cleared for safety.
  • Monitoring children is the responsibility of the supervising adult, regardless of the presence of lifeguards.
  • Participants must be 48-inches tall to ride the slides.
  • Participants less than 48-inches tall may ride the lazy river with an adult.
  • Participants who are not able to demonstrate their ability to swim the crawl stroke 75-feet will not be allowed in water over their shoulders.
  • Participants with open sores, infections, or communicable diseases are not allowed in the water.
  • Participants must shower before entering the pool.
  • Proper swimwear is required.  Males must wear swimsuits with drawstrings, while females must wear one or two-piece suits. Suits with metal buttons, snaps, or rivets will not be allowed on the slides. T-shirts may be worn in addition to proper swimwear.
  • Participants under three years of age must wear approved swim diapers at all times while in the facility.
  • Diapers must be changed in the locker room.
  • All participants using the lazy river must be in a tube unless an adult is assisting a child.
  • Participants must obey lifeguards at all times. Refusal to do so may result in expulsion from the facility without refund.

Season Passes

Course & Event Registration

HMAC Rentals

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