"Just checking out the view," she captioned the photo.
The MTV star is currently on vacation with her three boys, Isaac, Lincoln, and Lux.
And by the looks of the photos, she's having a blast!
Within the last few weeks, Kail has taken to Instagram to show off her new confidence!
On her thong bikini photo, she included the hashtags, #womenempowerment, #bodypositive, #curves, and #lovetheskinyourein! Yes, Kail!
What do you think of Kail's bikini photo? Let us know your thoughts!