Serena Williams' bod is clearly summer-ready -- check out the looks she was serving on a boat this weekend ... she's stunning!!!
The 43-year-old mother of two hit the water just off the coast of Sardinia with her family for a little Mediterranean vacay ... and she looked like she could still hit the Wimbledon courts this week if she wanted.
Williams flashed a taut bod in a tiny, black two-piece that she at times covered up with a green a top.
She and her husband, Alexis Ohanian, enjoyed both the sun and the surf .