From US 32 in Grand Haven, follow the signs to the waterfront area and state park. Separate parking is available for the lighthouse.
The lighthouse can be visited all year. Winters are especially challenging, as the pier is typically very icy and winds can be extremely cold.
Rain earlier in the week left the pier covered in ice. I waited until after sundown for the pier lights to come on, then took a series of shots. This one was a 15 second exposure at F/32.