Milford Lake is the biggest lake in the state and you can see why when you look at it on a map. There are many ways to get there since it is so big, so I will just share how to get there from I-70 coming from both directions. If you are coming east, you can take Milford Lake Road north to East K-244, and the alternate route (Alt K-244) will take you to North K-57 faster. Or if you are traveling west, simply take North US-77 to North K-57 and get to the same place. There you can either stay south at the Rolling Hills Park or ride the dam up north to Milford State Park.
Before I continue, let me tell you more background information about the lake. Milford lake is known for fishing and boating. Many state competitions involving these activities are held specifically at this lake for its size. This is somewhere you should consider if you are into fishing and boating. There are many places for you to do these things here which is why I recommend this lake in particular to you.
Last time I visited Milford, our family decided that East Rolling Hills Park is where we would swim. There is a nice beach located in this area after a few right turns once you are on the road directed by signs on K-57. There were a few playgrounds and restrooms near the beach that came in handy and there were plenty of trees on the west side providing a lot of shade for us in the evening. There is an outlet, fish hatchery, and nature center on the east side of the highway as well on the south side. Also to the east of the lake, you can even go golfing at the Rolling Meadows Golfing Course.
Taking a trip up north to Milford State Park, there are more swimming beaches, picnic benches in shade, more fishing spots, and more with plenty of restrooms and showers provided nearby. There is an overlook of the lake just right after the dam where you can go free of charge with a playground aka North Overlook Park. We visited here a time or two for a nice rest, a fun time on the playground, and a time for good pictures to keep for memories. There is a lot of housing and lodging north of the lake and east of the state park that are right next to the lake and have a decent view of everything in the comfort of their own homes.