X17 EXCLUSIVE - Michael Lohan Takes His Ladylove To New Heights On His Birthday

Michael Lohan, who turned 51 yesterday, spent the day in Catalina with his lady love Christiana. The two enjoyed a private helicopter ride, and by the looks of the photos, they had a great time.

Earlier in the day, Michael tells us he spent time with his daughter Lindsay in Venice where the two celebrated his birthday ... and chatted about her Leno appearance.



As for Christiana, Michael tells X17online exclusively:

"She is a mature, intelligent woman who is dedicated to her children and healthy things in life. She loves working with kids."

After their quick trip to Catalina, Papa Lohan and Christiana dined at BOA Steakhouse in West Hollywood. Sounds like quite the busy birthday.

See more of Michael celebrating ... after the jump.