Kids Birthday Parties Orange County | Santa Ana Kids Parties

The Best Kids Birthday Parties in Orange County

At Sender One Santa Ana, we’ve worked to create a unique climbing environment built to excite, challenge, and entertain kids and adults alike in the Orange County area – and while we’re proud to provide a space for regular climbers to practice and enjoy themselves, we also throw some of the best parties in the OC! Climbing at Sender City is an ideal way to celebrate a birthday and pack a fun-filled day for everyone attending. Treat your child and all of your child’s friends to a day of exercise, excitement, and a whole lot of fun!

Party Packages


Our 2.5 hour Sender City parties are full of fun activities, and include the following:

  • 30 minutes of harnessing, instructions, and safety orientation
  • 1 hour of climbing in the Sender City Climbing Area
  • 1 hour in an exclusive party space
  • Climbing harness and helmet for climbing activities
  • Free climbing for the birthday kid’s parents (2 adults)
  • Dedicated Party Attendant* to ensure your party goes smoothly

*One party attendant per package, additional attendants are $75

Book a Party at Sender City

Whether you’re celebrating a birthday party, graduation, a big win for a sports team, or any other occasion, Sender City is the perfect place to host a killer party! Just follow these guidelines to make booking your party a breeze:


  • You can book in person at Sender City, via this webpage, or by calling us at (714) 881-3456
  • We recommend booking parties 4 to 5 weeks in advance
  • If you’re booking a private party, we’ll need at least 2-3 weeks advance notice (private parties also require 25 slots)
  • To confirm your booking, we’ll require a non-refundable 50% deposit
  • Looking to throw a really big party? Just email [email protected] for groups larger than 25
  • If you’re interested in having a party outside of our normal 10am-6pm operating hours, contact us at [email