She emerges from the sea, and as the warm sun dries her hair, it settles into perfectly proportioned, graceful waves. By the time she changes for dinner, her hair is a mass of shiny, beach-coiled perfection.

Nah. Not in a million years. Every stylist knows beach waves don’t just happen. They require technique, time and attention to the nuances of each client’s texture. Plus, beach wave trends continue to evolve, and this season, there are several new shapes to master.

Here, four pros share their thoughts on the newest shapes and how-tos, plus the best products to…