English Translation
He loves camping in the wild.
Is it wrong to just say “Er liebt in der Wildness zu campen.” ?
He loves camping in the wild.
Is it wrong to just say “Er liebt in der Wildness zu campen.” ?
Yes, it is wrong.
You need an object and you cannot use the infinitive as such.
You can say
“Er liebt das Campen in der Wildnis.”
and it is even a bit closer to the English sentence.