TMZ has obtained a photo of Tiger Woods back in the danger zone — the Las Vegas pool party scene — where he was SURROUNDED by hot chicks in bikinis … and a TON of security.   Read more after the jump.

@Shay_Marie x @gametimegirl

Woods quietly hit the Liquid pool party at the Aria Hotel on Saturday … sporting a t-shirt, shades … and a ringless wedding finger.

Sources at the pool tell us Tiger was flanked by a security team — like the behemoth on the far right — while he visited with a couple of friends inside a private cabana.

Of course, Vegas was the epicenter of Tiger’s adultery back in the day — thanks to ladies like Rachel Uchitel and other women of her ilk.

This time, it’s unclear if Tiger found a special friend at the pool party … but he definitely had some options. Check out the pics from the pool that day … thanks to our pals at SpyOnVegas.com.

TMZ