Fun ‘N The Sun Houseboats offer luxury cruising on the Mississippi out of the Great River Harbor in Alma, WI. Rent the “elite fleet” with all the extras- air conditioning, microwaves, water slides, etc. You will enjoy unlimited cruising in the Mississippi River valley, and can even venture into the historic St. Croix River. Charts and guidebooks are furnished along with boat handling instruction. You will have all the skill and information needed for a memorable vacation. You can enjoy a houseboat vacation whether or not you are an experienced boater. We provide specialized, comprehensive boater training from experienced professionals.