St Ignace has a nice launch and large parking area. I have left my truck and trailer there for up to a week. Their launch and parking fees have increased this past year. I believe for out of state residents it's $10/day or $70 for an annual pass. The launch and parking is about a mile from the marina. I think they prefer you let the Police Chief know if you are parking overnight or for an extended period. An annual pass can be picked up from the City office. Mackinac Island is a great place to visit as well. I've just slipped at the marina, along the shore, and stayed for a week. The marina can be quite rough during the day with the ferries coming and going. So be sure to tie up well. Good luck figuring out the best way to fender, due to the posts. Mackinaw City has a busy downtown area with a nightly laser show, numerous restaurants and shops. I prefer to stay at the Straights Marina there, as opposed to the City Marina. Both are walking distance to the shops and restaurants. Also several interesting museums on both Mackinac and Mackinaw. Beaver Island has a nice small marina, and we've enjoyed riding our bikes along the shore. An interesting old lighthouse along the way to Beaver. Be sure to check out the toy museum when there. The Les Cheneaux Islands offer some nice cruising and anchorages as well. Cheboygan, MI, is at the head of the Cheboygan River and Michigan Inland Waterway. That can get pretty busy in the summer, but was a nice cruise, including through two small locks. All these places can be accessed within a day or two from St. Ignace. You can find nice boat launches at the Straights Marina and Cheboygan as well, but for me that involves the Mighty Mac bridge toll. ALso, I believe the Straights, being part of Michigan's State Park system, charges a non-resident use annual permit, in addition to the cost of launching and parking. Cheboygan is a county marina, and last time I used that ramp, parking was $5/day, but I"m sure that's increased.