The sign sort of tells you that you don't belong here.

The lava beach

Details of what makes a good offroad sidecar rig.
Note the steering damper and the variable brake.
Pressing the brake near the engine applies rear wheel brake with a small amount of sidecar brake. Pressing on the square pedal applies mostly sidecar brake with some rear wheel brake. This varience enhances steering control in difficult situations.

Typical divot in the beach road

Phelonius