Kanye West leaves Kim Kardashian and baby daughter North behind in L.A. to go boating in Greece on Aug. 11. Credit: MAVRIXONLINE.COM

Separation anxiety? After welcoming his first child, daughter North, with girlfriend Kim Kardashian nearly two months ago, Kanye West was spotted going boating in Greece on Sunday, Aug. 11. The 36-year-old new dad cruised around the Aegean Sea with pals in the gorgeous sunny weather.

But the rapper -- wearing black pants, a denim shirt and a somber expression on his face -- didn't seem to be enjoying the time away from his family. "Everyone around him seemed to be enjoying the day, laughing and joking but Kanye kept to himself," an eyewitness told The Daily Mail. "He didn't seem to be having much fun." 

A source tells Us Weekly, "Kanye went to Greece for two days with business friends of his and Kim's. He's back home in L.A. now."

West and Kardashian, 32, were both initially hiding out at home in L.A. with daughter North since her June 15 birth. A source told Us last month that West "doesn't leave North for more than an hour." A second insider said, "Kanye holds the baby all the time."

On Aug. 2, Kardashian made a brief video appearance on mom Kris Jenner's talk show Kris. "Hey mom, I just wanted to say congratulations on your new show," she said, showing only her happy face in the video. "I'm sorry I couldn't be there in person, but I'm just loving life a little bit too much at home right now."