Christopher Peterson / Splash News 1 / 8
Christopher Peterson / Splash News 1 / 8

Cleavage out for Breast Cancer research! Bethenny Frankel turned heads on the beach on Saturday, Aug. 16. The 43-year-old single mother attended a charity paddle board race benefiting the Breast Cancer Research Foundation in Sag Harbor, N.Y.

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"Had a blast this morning at the @bcrfcure with @TracyAnderson - had the best time! Thank you!" she tweeted. "The @BCRF 'Paddle & Party for Pink' was incredible! What a very well run & rewarding experience from start to finish(no pun intended.)"

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The former Real Housewife stunned in a polka dotted red and navy two piece, which gave beach goers a peak at her toned tummy and ample cleavage.

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Frankel also participated in the viral ALS ice bucket challenge, posting a picture of the moment the freezing water was dumped on her and passing the baton on to Bravo host Andy Cohen and her former "RHONYC" costars Ramona Singer and LuAnn de Lesseps.