Located on Mile Marker 0 of the Illinois River and the confluence of the Mississippi and Illinois Rivers, Grafton Harbor’s quest is to make your boating experience the finest!
Offering 151 covered slips and over 52 uncovered slips Grafton Harbor can accommodate boats of all sizes.Our Personal Water Craft Ports give your jet skis fast accessibility to the water. Their in-line rollers make launching easy and convenient.
Grafton Harbor offers a host of resort amenities to suit your individual needs. Whether you stay with us for a day or a year, there are multitudes of activities and conveniences at Grafton Harbor or close by, to make your stay comfortable.