Talk about havin' a blast on the beach ... A-lister Gabrielle Union may be in her 50s, but these scorchin' shots she shared on Instagram say otherwise 🔥!

The mom with the rockin' bod was livin' it up in Miami and posted a few enticing photos which lured in 21+ million followers ... Needless to say, Dwyane Wade is one lucky man!

Tap into the gallery above and swipe through Gabby-Greatness! And if you're still feelin' the beach vibes, check out our gallery of stars on the beach ... Good times and tan lines await!