Acapulco is known as one of the best places to try out water skiing.
Pie de la Cuesta, few kilometers north of Acapulco, is a long beach and is ideal for this sports. Every year there is a championship in the month of May. Other good options are Tres Palos Lagoon and Puerto Marqués.
If you don't know how to ski, don't worry, there are always instructors who can introduce you to the art of skiing.