The HQ is the command center of the Octopod. Inside, the octonauts can control things like the octo-alert and the moving of the Octopod. The computers inside are normally controlled by Dashi but sometimes controlled by others.
The inside of the HQ has grey flooring and an orange circle bordered in peach in the center, where the lift to manual steering is. There are multiple consoles with the button for the octo-alert, which is used in all the shows, and a larger console facing from the front of the ship, with two monitors on the sides and a giant octo-alert button in the center. Then there are more computers and the hot chocolate maker. One of the computers can be used to see other crew's personal pictures, which sometimes appears in the series. the walls are a deep orange and the ceiling is a darker shade, with 3 grey monitors hanging from it.