Explore the huge variety of seaweeds on a guided Seaweeds & Sea Creatures Beach Walk and discover the countless species of marine algae; green, red, and brown which are found on the beach at Crystal Cove State Park. Learn about the biology, ecology, and even human uses of seaweeds. Meet at Pelican Point parking lot #2 near the boardwalk (PCH coastward at Newport Coast, right at kiosk to the first lot.) Day-use fee: $15