Big Six Mile Creek Marina State Park provides a boat launch for boating and fishing access, 134 seasonal boat slips, gasoline and oil sales, ice and pump out service. Seasonal slip vacancies are filled by a lottery every year. Attractions: Boat Launch Sites Dockage Empire Passport Accepted Fishing Marina Directions: Located on the Niagara River, mid-way up the west shore of Grand Islandon Whitehaven, off West River Parkway. Contact Information: co/ Beaver Island State Park — 2136 West Oakfield Road Grand Island, NY 14072 Phone: (716) 773-3271 Seasons/Hours: The park is open from May to November. Pets: Household pets only; caged or on a leash not more than 6 feet. Not allowed in buildings.