'Suits' Star Patrick J. Adams Celebrates Weeklong Bachelor Party With Chris Pine and Friends -- See the Pics!

Jennifer Drysdale

Patrick J. Adams is saying goodbye to his days as a single man with a little help from some famous friends!

The 35-year-old actor, who will soon say "I do" to Pretty Little Liars star Troian Bellisario, gathered a few pals together for a week-long bachelor party, documenting the whole thing on social media.

RELATED: Troian Bellisario Celebrates Her Bachelorette Party in Europe With 'Pretty Little Liars' Co-Stars!

The group -- which included Chris Pine and Lie to Me actor Brendan Hines -- began their adventure on a huge tour bus. Throughout the week, the guys stopped at the Austin City Limits Festival in Texas, took a hot air balloon ride over New Mexico, and went kayaking and hiking through the Grand Canyon.

RELATED: Troian Bellisario Is Back on 'Suits'! The 'PLL' Star and Patrick J. Adams on What We Can Expect From Her Big Return

The Suits star and his crew wrapped up their week of fun in Las Vegas, Nevada, on Friday, where they enjoyed the music of resident DJ Calvin Harris at the OMNIA nightclub inside Caesars Palace.

While Adams and Bellisario plan to keep their wedding date a secret, it's only a matter of time before they finally walk down the aisle, and they couldn't be more excited about it.

WATCH: EXCLUSIVE: The 'Pretty Little Liars' Plan Their Ultimate Dream Weddings for Ezria, Haleb, Spoby and More!

"We're going to make sure that everyone finds out about that long after it happens," Adams told ET in August. "That's kind of our game plan… but obviously we're both incredibly excited. Once it does, we'll make sure that the world knows."

Find out more in the video below.

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