Map Grand Haven Triathlon and Duathlon Grand Haven State Park1001 Harbor Avenue, Grand Haven, MI 49417WebsitePhone: (616) 843-1808 Description Join Superior Multisport, LLC for this fun triathlon in Grand Haven. The 500 meter swim portion will be occuring within Grand Haven State Park. For more information or to register, visit www.grandhaventri.com A Recreation Passport is required for vehicle entry into Michigan state parks. To make a camping reservation, visit www.midnrreservations.com or call 1-800-447-2757. Please Note: Dates occasionally change and events may be canceled due to inclement weather and other reasons. Please call the park to confirm dates/times prior to your arrival. Subscribe to Inside Michigan's Great Outdoors newsletter Videos Event Dates July 14, 2019 7:30 AM to 9:30 AM More To Explore Categories: Sporting Events State Park Events City: Grand Haven Region: West Central Although the MEDC uses reasonable efforts to maintain the accuracy of the website content, it is not represented to be error free. Read legal information.