On Monday, Alessandra Ambrosio turned heads in a tiny string bikini while playfully enjoying the beach.

The 43-year-old supermodel flaunted her incredible figure in a daring black bikini top with barely-there gold straps and matching cheeky bottoms.

After emerging from the ocean, she turned the beach into her runway, showcasing her toned abs as water cascaded down her fit physique.

The former Victoria's Secret Angel seemed to relish the sunny winter day in Florianópolis, a city in southern Brazil.

She wore her dark brunette hair, still damp from the water, loose and complemented her look with slim, cat-eye sunglasses to shield her eyes from the sun.

Beneath her stylish shades, she seemed to go makeup-free, highlighting her natural beauty during her relaxing seaside getaway.

She showcased her blonde-highlighted hair and sun-kissed skin on what seemed to be a solo day at the beach.

When she wasn't swimming, she slipped into a cream and black patterned coverup inspired by bandanas, layering it over her bikini.

Alessandra Ambrosio also adorned her ring finger with a gold band and wore another on her middle finger of the opposite hand.