A young man has been impaled on a handlebar and another has neck wounds from barb wire fencing after a quad crash in southern Queensland.

A long weekend holiday has ended badly for two young men who have suffered horrific injuries in a quad bike crash in southern Queensland.

One had his thigh impaled on a handlebar and the other sustained neck wounds from barb wire fencing in the crash at Rules Beach, about 100km north of Bundaberg, on Monday morning.

The men, in their early 20s, were airlifted to hospital in a stable condition.