ad·ven·ture

You NEED to be prepared for the worst!  The literal definition of "Adventure" is:

-an undertaking usually involving danger and unknown risks.

So, although SOME of this gear can be considered as optional... It's really NOT!

Here's an overview of what you need:

-Tire inflator/air compressor

-Tire deflator and pressure gauge

-Tire repair kit (I can't tell you how many times I got a nail in my tire)

-Working TPMS sensors (know when your tire is lacking air, before it's too late)

-Traction devices (boards and tracks)

-Off-road jack (bottle jack, block extenders)

-Fire extinguisher

-Shovel (you might have to dig your vehicle out or smother a fire)

-Mechanic tools (you may need to fix things on the trail)

-Lighting (you can't fix things in the dark)

-Axe and Sledgehammer

-First-aid kit (you might need to fix yourself)

-Tie down straps

-Jump Box/2nd battery/Jumper Cables

-Communications (Radio, Satellite Communicator <-- if you decide to go alone)

-Tow strap/snatch strap (only useful if you have a 2nd vehicle with you)

-A friend driving another vehicle (avoid venturing out alone)

-Extra food and water (so you don't have to eat your friend to survive, LOL)

-Navigation GPS tool (smart phone with a downloaded google maps, GAIA)