Family Picnic at Millennium Park. Walk the scenic trails, rent a boat, chat with friends, bring your grandkids to the Splash pad. Bring a dish to pass. RSVP 616.913.4419. Car pool leaves St. Alphonsus at 10:45 or meet us at the Park. Cost for splash pad/beach ($2.00-$4.00 all day) and boat rentals ($6.00-$10.00/hr).