If you're looking to reserve a shelter, those are most likely already reserved. The swimming-splash pad area will most likely be busiest, but not as busy as the state parks on Lake Michigan, such as Grand Haven or Holland State Park. I've never experienced the park so busy they were turning people away if that is your concern.

Hi there! Yes, there are two shelters (“A” and “B”) that are available for reservations made at least two weeks in advance. These rent for $175 per day. In the beach area there’s also a shelter that is available first-come first-served and we have a first-come first-served shelter in the main park area as well. We have a map of the park showing shelter locations on our website. Just search for “Millennium Park Michigan” in your browser. Please let us know if you have any further questions!

You'll find a map and other info on the park's webpages. Tripadvisor won't accept links in a post, but if you just search for "Millennium Park Michigan" you'll find it.

The park trails are open year-round but many of the park's facilities are not. The beach area and boat rentals open a little before Memorial Day weekend and close a little after Labor Day. Our bathrooms are unheated, so they are closed from November through April to prevent pipes freezing. The main parking areas on both sides of Maynard Ave. also close from November through April. There are two year-round parking area though. One is at the trailhead at the north end of the park, at O'Brien and Butterworth. The other is a small designated year-round parking lot in the Meadows area, on the east side of Maynard Ave.

yes

Not to the beach.

There are no picnic areas within sight of the splashpad. The splashpad is within the fenced beach area at the park. There is one first-come, first-served picnic shelter within the beach area, but it's at the other end of the beach. There is an admission charge to enter the beach area, and you can get wrist bands allowing you to come and go during the day. Outside the beach, we have two picnic shelters (A and B) which are clearly marked and signs direct people to them. These are reservable and during the summer they are pretty much booked and unavailable on Saturday and Sunday. There's also a smaller picnic shelter (the "Family Shelter") that's available first-come, first-served, like the one in the beach area. We also have six or seven groupings of about three picnic tables and a grill scattered around the recreation area. These are all first-come, first-served. They are not labeled and there are no signs directing people to them.

No, private boats are not allowed on the lakes at Millennium Park, mainly to protect the lakes from invasive species. We're not allowed to post websites here, but you can google millennium-park and go to the "boat rentals" link on that page. In the lower right you'll find more info on private boats and invasive species.

Sorry, no. However, there are lots of grills scattered around the recreation area of the park and a few in the beach area. If a grill is right next to a picnic shelter then it's reserved for the group using the shelter (if any), otherwise grills are first-come first-served. If you're having an event at the park and have reserved a picnic shelter, special arrangements may be possible.