1- Take exit 124 from I-94 towards Albion- follow the road into downtown and right through town. (You will turn left at the light where you see the post office.)
2- After you get through town, you will see Homestead Savings Bank, then the library, a church, etc on your left. You will see River Street before the river itself. Turn left there. Follow River Street over the bridge, and Victory Park will be on your left. Take the road into the park on your left. The Pavilion will be on the left (across from the V of Victory Park in the Map below.)
(You could also take Hannah Street - at the college- and get to the same place from Michigan Ave- which is business 99.) Just turn left onto Hannah, drive through the campus and turn right into the park right after the river. Look at the map above for that route. The road through the park connects with Hannah, it just doesn't show up on the map. That is probably a bit shorter.
Directions courtesy of AlbionMich.com