03/12/2012 at 07:30 AM EDT
Looks like Patrick Schwarzenegger is a mini Terminator.
A day after suffering cuts and bruises
in a skiing accident, Maria Shriver and Arnold Schwarzenegger's 18-year-old son returned to the slopes in in Sun Valley, Idaho, on Sunday, apparently no worse for wear.
"Appreciate all the messages, love all you," he wrote on Twitter.
"I'm actually feeling really good today, and I even went skiing again today. Thanks again!!"
Schwarzenegger was hospitalized on Saturday, having suffered injuries including a nasty cut on his backside. But he was well enough to post details of his condition on Twitter and photos on WhoSay and Instagram.