Welcome to Sender City

Welcome to Sender City (formerly known as Funtopia), an interactive climbing center great for kids and adults of all ages! We take parties to new heights! Have your next party at Sender City.

Learn MoreSender City Parties

Welcome to Sender City (formerly known as Funtopia), an interactive climbing center great for kids and adults of all ages! Climb buildings, towers, faces or race your friends to the top. Sender City is located inside of Sender One Climbing, one of the biggest and tallest climbing gyms in the country.

Children must weigh at least 40lbs.  All shoes must be close-toed and have non marking soles. Reservations Required

Sender City Summer Hours:

Monday – Sunday: 10am – 6 pm

(Groups and Parties 10am – 8pm)

Reservations required to guarantee session.

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Groups and Parties

Our party packages include 1 hour of climbing and 1 hour in our exclusive party space.

Annual Pass

Find out the benefits of an annual pass holder!

Open Climb

Reserve a one-hour climbing session, available 7 days a week.  Reservations required to guarantee space.

Toddler Park

Toddler Park

For the smaller ones under 40lbs.  Play with blocks or climb the alphabet traverse.


Sender One Climbing


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Ron T.
“The kids stuff is really well run. They maintain a high staff to kids ratio. The kids are well watched. Sender City is awesome.” (Read More)

Jennifer S.
“We came here on vacation, and I’m sorry we don’t live close enough to buy an annual membership. Both the equipment and the personnel were exceptional.” (Read More)

Casey M.
“Our family really loves (Sender City) at Sender One. The walls are all decorated in a really fun way for the family. They have a good assortment so that everyone will find something they like.” (Read More)


All climbers and observers must fill out an online waiver. This includes parents, grandparents, babies and kids who are only watching. Fill out a waiver online to save time at check-in.



Sender One Climbing, Santa Ana
1441 S. Village Way
Santa Ana, CA 92705

Sender One Climbing, Los Angeles
Coming Soon!
11220 Hindry Ave
Los Angeles, CA 90045


Climbing Gym
Mon – Fri : 6am to 11pm
Sat : 8am to 10pm
Sun : 8am to 8pm

Sender City (formerly known as Funtopia)
Summer Hours, 7 days a week:
General Admission: 10am to 6pm
Groups & Parties: 10am to 8pm


Climbing Gym
(714) 881-3456

Sender City
(714) 881-3386

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