Sender One locations have a dedicated kids' area (Sender City) so kids can climb anytime, but their drop-in sessions also span kids' supervised climb sessions, a climbing academy, and camps where they can hone skills.

Note that there are two locations: LA and Orange County!

Cost: Rates start at $25/adults and $20/youth for day use, plus the cost of gear; kids drop-in programs start at $29/session