It's been a turbulent time for Affleck, who recently completed a 40-day stay in rehab.
Ready for a fresh start, the actor and his new flame, 22-year-old Playboy model Shauna Sexton for a nature-themed getaway in Big Sky, Montana.
Sexton took to Instagram story to share sweet snaps from their vacation.
Affleck loves Montana, having shared a home in the region with his ex-wife. The pair would often explore the area with there with their three kids — Violet, 12, Seraphina, 9, and Samuel, 6.
In fact, they spent last Christmas there.
Affleck's getaway follows him and Garner wrapping up their divorce, after announcing they'd split in 2015.
Meanwhile, Garner made her first post-divorce public appearance in Beverly Hills.
On Sunday, the mum-of-three spoke at the 2018 Rape Foundation Annual Brunch.
Taking to Instagram, Garner shared, "Today, I was honored to host their annual fundraising brunch and be in the company of 850 knowledgeable and fierce guests supporting a place where victims are heard and believed and where their stories are proven to be true."
"Imagine the cultural shift when belief is the norm and sexual assault is no longer a crime committed with impunity."