Terpstra’s Blue Water Marine

Your #1 Marine Supply Store Since 1976

Northwest Indiana’s best marine supply store is in Griffith, Indiana. Featuring a great selection of boats, boating accessories and marine products for all your needs.

We invite you to visit us for a pleasant, efficient shopping experience. Terpstra’s team members are standing by and ready to personally assist you in finding exactly what you need.  If you require special service, recommendations, ideas and suggestions, our experienced staff is a phone call away. Our business is serving you.



Take A Virtual Ride on the 2021 Angler V Series from G3 Boat
Video Walk-Thru of the 2021 PrinceCraft Quorum Pontoon Series

At The Corner of 45th and Colfax in Griffith IN.

6005 W 45th Ave
Gary, Indiana  46408
Email: info@terpstrasmarine.com

Phone: 219-923-0602


Mon – Fri: 9 am – 5 pm
Sat and Sun: Closed