If you're going ATVing with your friends in a rather large area of ATV trails, you might want to consider the fun of camping out overnight so you and your ATVing friends can get up early the next day and enjoy the fun.
Many ATV trails now allow camping but not directly on the trails, normally there are designated campsites. Knowing you don't have to stop and make your back to the trailhead to pack up your ATV for the evening will let you ride longer with your friends and pull over when you've had your fun for the day and enjoy a great evening together camping.
The benefits of camping mean you not only get to ride the ATV trails longer, but you also will be riding them safer. If you aren't tired, you aren't as likely to make a mistake when you're riding your ATV and you are much less likely to become fatigued.
Most ATV trails allow you to have small campfires in the designated camping area. Enjoy a campfire meal with your friend and hash out your favorite ATV stories. It is important to follow the "Leave No Trace" standards and basically, if you bring it in, bring it out with you. There should be no trace of your campsite when you and your ATV buddies leave. This applies to campfires too, make sure after the fire is absolutely doused, to scatter the ashes and make sure there is no trace of your having been there.
If you've been thinking of doing something a little different with your buddies when you ride your ATVs, consider taking an extended weekend with your friends and make it an overnight stay so you can hop on your ATVs the next day and continue the fun!