Diamond Lake Marina

10/08/2025

The lake may be quiet, but now is the perfect time to take action. Store your watercraft at Diamond Lake Marina and let our service team handle any maintenance before next season begins.

09/24/2025

The boating season might be over, but boat care never stops. Store your watercraft with Diamond Lake Marina and use the off-season to get any repairs or upgrades checked off your list.

09/01/2025

Happy Labor Day! As we celebrate the holiday and the unofficial end of summer, it’s time to start thinking about where your watercraft will stay this off-season. Call us to reserve your storage spot!

08/09/2025

At over 1,000 acres, Diamond Lake is one of the largest inland lakes in southwest Michigan—plenty of room for boating, fishing, and summer fun.

07/30/2025

From everyone at Diamond Lake Marina: THANK YOU!
Because of your votes, we’ve been named Best of the Best Marina by Leader Publications. We’re proud to serve such an incredible community.

The results are in! With more than 28,000 votes cast, Michiana residents have spoken and the Best of the Best businesses have been named. The winners of Leader Publications’ 2025 Best of the Best Contest are as follows: Community Best Place to Work in Buchanan Subscribe to Leader Publications' fre...

07/26/2025

Your opinion matters. If you've had a good experience with Diamond Lake Marina, take a minute to leave a Google review. We truly appreciate it.

Click here:
https://g.page/r/CadM_Qmo31XMEBM/review

07/19/2025

Enjoying the lake? We hope so! But if your boat starts acting up, Diamond Lake Marina is ready to help with maintenance, repairs or accessories. We’ll get you back to smooth sailing in no time.

07/13/2025

Is there anything better than the Fourth on Diamond Lake? Just good friends, calm water, and red, white, and blue vibes all weekend long. We’ll take that every year.

07/05/2025

Fireworks, family, and time on the lake—does it get any better? Wishing everyone a safe and spectacular Fourth of July from Diamond Lake Marina.

06/19/2025

It’s not just a lake—it’s a lifestyle. Diamond Lake has been the heart of Cassopolis for generations, and we’re proud to be part of it.

05/31/2025

Now that your boat is back where it belongs—on the water—remember that Diamond Lake Marina is here if anything goes wrong. From engine issues to routine upkeep, our service team has you covered.

05/26/2025

Diamond Lake Marina joins the nation in remembering and honoring our fallen heroes this Memorial Day. Their sacrifice will never be forgotten.