As they weren't following a trail, there was no reason to pull off or move anywhere, except next to a stand of trees to block the wind and give them somewhere to hang hammocks.
The weather was warm here in the afternoon, but it was getting cold quickly in the evening, and Karl realized that perhaps just setting up in the trees might not be the most comfortable option.
He had [Flaming Body] to keep himself warm, but it was still better to create a tent and have a proper sleep.
There was one in all the supplies that the Elves had gathered for him, and Karl considered taking it out, but Rae was already on her way to the trees to make them something.
She wasn't going all out today so that they could easily pack it up in the morning and not leave one of her glorious constructs for strangers she didn't even like.