Starting Saturday, July 12, Splash Island will open at 9:00 AM on Saturdays and Sundays through September 28, exclusively for Individuals living within Oak Brook Park District Boundaries (proof of residency is required upon entry, and daily admission fees apply). Splash Island will open at 10am for the general public.

This early weekend access is our way of saying thank you for being a valued part of the Oak Brook community. We look forward to seeing you at Splash Island!

On Friday, July 18, Swim Central & Splash Island will close at 4pm due to a Stars swim meet.

Registration & Fees

Individual Registration Fees

Early Bird Online Registration (Ends March 31, 2025): $30
Online Registration (Begins April 1, 2025 and ends May 9, 2025): $35
Day of Registration (May 10, 2025): $40

Team Registration Fees

Register a team of 15 people (minimum required, $30 per person) by Monday, March 31, 2025, in order to receive personalized team shirts included at no additional cost! Personalized team shirts are NOT guaranteed after March 31. Add $30 for each additional member after team of 15 has been reached.

For team registration please contact Valerie Louthan at vlouthan@obparks.org or (630) 645-9534.

Please note: Timing chips and t-shirts for both individual and team registrations are not guaranteed after Monday, March 31, 2025.

All registrations are final. No refunds.

Downloads

Pink 5k 2025 Race Map

Registration & Fees

Individual Registration Fees

Team Registration Fees

Pink5k Sidebar Block