This document discusses surfonomics, which analyzes the economic impact and value of surfing. It provides examples from California beaches, which see over 17 million visits annually contributing $15 billion to the economy. A case study of Solana Beach, CA is presented on beach use. Economic impact refers to local spending while economic value considers travel costs and willingness to pay. Methodology for surfonomics studies is outlined. Examples are given from sites like Trestles, CA, which sees $8-13 million in annual economic impact and $10-26 million in consumer surplus. The potential for surf parks to expand surfing access and the surf industry is discussed.