Ashley Tisdale  tore it up aboard a yacht in Miami over the weekend, celebrating her impending nuptials with bikini-clad girlfriends. The ladies soaked up the sun , danced, and sipped cocktails as they toured the bay and took in the city views. Vanessa Hudgens , the bride-to-be's BFF and High School Musical costar, got in on the fun, jumping and throwing her hands in the air in her leopard-print swimsuit. Ashley is set to tie the knot with fiancé Christopher French , who asked for her hand in marriage in August 2013. The star's massive engagement sparkler  has been firmly placed on her ring finger ever since. Keep scrolling to see Ashley's ladies-only celebration!