Mama June -- Disappearing Act in 'Baywatch' Swimsuit (PHOTOS)

Mama June is vanishing before our very eyes, and with the lbs. falling off her bod ... she hit the beach to celebrate -- 'Baywatch' style! Suck it, Pam.

June brought the 'Honey Boo Boo' clan down to Panama City, FL this week, and slipped into a red one-piece. She's reportedly shed 60 pounds ... and we gotta hand it to her -- it shows.

She's said she wants to lose 100 lbs., and even hired a trainer back in March.

Check out the pics ... you'll see June did gain in one department -- Sugar Bear's back! We're told they're living under the same roof again, and trying to work things out.