The Coast Guard will enforce the California Half Ironman Triathlon special local regulations on the waters of Oceanside, California on April 5, 2025. These special local regulations are necessary to provide for the safety of the participants, crew, spectators, sponsor vessels, and general users of the waterway. During the enforcement period, persons and vessels are prohibited from anchoring, blocking, loitering, or impeding within this regulated area unless authorized by the Captain of the Port, or his designated representative.
Source: Federal Register USCG
Link: Special Local Regulation; Marine Events Within the Eleventh Coast Guard District-California Half Ironman Triathlon