My mummy wants to know the title of this b-movie she saw

[Private Joker]

To me, it sounds like she got this mixed up with And Then There Were None and Deliverance, but here's the plot.
This family goes on a canoe trip and run into bad weather, they go on land and see a cabin, go into it and it's empty, so they stay in it.  Later the family who owns it shows up, and pretty much welcome them with open arms.  That's about all I can make up of the plot, but my mom says this scene stuck in her head...this little girl was on a swing and she was pushed so hard that she went over the bar and died.
I might not have the deatils right, but this is all I can do.  
Replies please.

[Chadzilla]

American Gothic?

Wasn't there a girl on a swing gag in that?  Oh and Rod Steiger, RIP. (He was in it)

[Mofo Rising]

It certainly sounds like AMERICAN GOTHIC.

However, the little girl. . . ahem, the forty-year old little girl was never on the swing.  But her and her forty-year old brother did push another guy on the swing so hard he fell off a cliff and died.

Terrible movie, but I still found it sort of creepy.

[Cullen]

I third American Gothic as the movie your looking for.

I have nothing further to add.

Kind of redundant, I guess.