Sarah Michelle Gellar, 46, shows off her incredible figure in a swimsuit while snorkeling during a beach vacation

Sarah Michelle Gellar showed off her incredible figure in a one-piece black swimsuit this weekend.

She looked sensational as she took to Instagram with a selection of gorgeous holiday snaps, some of which saw her underwater while snorkeling.

The actress, 46, also displayed her toned physique while enjoying a sunbathing session with a few good books in a mystery location.

The Buffy The Vampire Slayer star completed the look with a pair of large cat-eye black shades as she wore a gold nameplate necklace that read Sarah.

The mother-of-two captioned the post: ‘Vacation dump 2 – underwater edition (bonus points for finding Flotsam or was it Jetsam ?!? )’

Sarah was with her husband, actor Freddie Prinze Jr, after the pair celebrated their 21st wedding anniversary last year. 

The actress shared a snap of the pairs legs as they sunbathed, looking out on the stunning view. 

Sarah was also seen underwater in a one piece bathing suit. 

In another snap, the star put on a very leggy display as she donned a summer dress. 

Their two children, who they prefer to keep out of the spotlight, were not seen in the photos.

Sarah and Freddie were one of the ‘it’ couples of the 90s and have since become one of the strongest pairings in Hollywood with a marriage spanning two decades.

The co-stars met on the set of the 1997 horror film I Know What You Did Last Summer and their friendship turned to romance a few years later.

The Scooby-Doo co-stars tied the knot in 2002 at a resort in Mexico, describing each other as their ‘best friend’.

Seven years later, the couple welcomed their first child, daughter Charlotte Grace, in 2009, while on Rocky James followed three years on in 2012. 

Sarah has credited their long-lasting marriage to being present with each other.

She previously told People: ‘Take the 10 minutes – put the phone down. Have a cup of coffee together. Walk the dog at the end of the night. Read a story with your kids.

‘Make the most of the time that you have. We are all pulled in so many directions, so make sure that, whichever one you are focusing on, you’re present.’