Depends when you come to Muskegon for Owasippie, they are closed once the scouts come (June 10th - August 19th). http://ooec.org/trails/
There is a parking pass you would have to purchase (see link above), but well worth it and even more so if you bring 1 or 2 more people. If you do go let me know I could meet you out there and make sure you don't get lost (Owasippie consists of approx 5,000 acres)
If you are camping "in season", it's about a 30 minute drive from Hoffmaster (take 31 north to Russell Road exit, turn right and follow Russell Road north for approx 10 miles and you will run into the trailhead/administration building. I would highly recommend Owasippie, very nice trail but very challenging because you are constantly climbing or going downhill to the next climb (I take friends out who are in decent shape and the 8 mile loop gives their lungs and legs all they can handle)
Bass River in Grand Haven is alright. Very flat, twisty, singletrack good if you have a beginner with you but otherwise probably not worth it and spend the extra 20 minutes and go to Cannonsburg.