The CoolDads of the Inner Richmond – A Pied Piper Teaching Our New Generation About Electric Skateboards and Push Scooters

As seen above the 8400(!) block* of Geary

*So Geary ends on the 8300 block way out there in the West Bay, but some SFGov worker labeled the Geary Expressway underneath Masonic (aka the Geary Tunnel) the 8400 block? As per Wiki