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Great Lakes Shipwreck Preservation Society
Dedicated to Preserving our Shipwrecks and Maritime History
"From Prevention to Preservation"
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Website Updated

GLSPS Annual Fundraiser!!

UMSAT Show Website

Virtual Show Only!
The Date for the 2021 UMSAT Show!!

April 8 - 10, 2021

Thursday, 7:00 PM to 9:00 PM
Friday, 7:00 PM to 10:00 PM
Saturday, 1:00 pm to 5:00 PM

Meet and Greet  the speakers
Virtual Event 
starting Saturday at 5:30 PM and going to 7:30 PM

There will be one or two speakers each night 
starting at 7:00 PM

Saturday will have two speakers and a Virtual Social event 
starting at 5:30 PM and going to when ever.....

Stay tuned for the Lineup of Speakers for 2021

For more information on the upcoming 2021 UMSAT Show, please visit

If you are interested in joining the UMSAT Show Planning Committee, please email us at

Or, contact Mary Lillimo at "Show Chairperson", or Phil Kerber, "President", at

We are always looking for speakers that would like to present a great topic about their scuba diving or adventure travel experiences.

Please let us know if you, or anyone you know, would like to be a star and speak at a future UMSAT Show!

Lake Superior Magazine Logo 2x1
Check out the most beautiful magazine ever produced in Northern Minnesota!

GLSPS Project Sponsors

Air Down There Scuba offers free air fills and special pricing on rental equipment while participating in GLSPS projects. Required to show GLSPS Membership Card! 
Thank you, Scott and Tracy!

Aquaventure Dive and Photo Center offers free air fills and special pricing on rental equipment while participating in GLSPS projects. You will be required to show your GLSPS Membership Card.  They have also loaned us a GoPro HD video camera for a few projects. Thank you, Steve and Jolene!

Videos produced by Steve at Aquaventure Dive and Photo Center filmed in Lake Michigan on a Milwaukee charter trip. Click on their above logo for information to join them on a charter to visit these shipwrecks.
Prins Willem
The Dredge 906

HomeIce Dive on Lake Minnetonka - 3D Video Feb, 2020

ICE Dive On Lake Minnetonka and 3D Photogrammetry Practice

Please join us for an Ice Dive Video Documentation Event.
Saturday, February 22, 2020
All GLSPS Members are invited provided you meet the
diving certification requirements.  (See below).

Please Note:  This dive event is classified as a GLSPS "LEVEL 3" and "ID" Ice Diving Event!

The Plan:

To video document the Hopkins shipwreck and possibly other streetcar boats and the Side-wheeler.  We have chosen the Hopkins to videotape to create a 3D version of the shipwreck for public view.  

This year we are hoping for "Cold Weather" to be able to complete the documentation on the Hopkins.

8:00 AM Saturday Meet at the Boat Launch.

9:00 AM - Set up - ALL must help with the setup and take down!!!  No exceptions and no early departures!!!   

10:00 AM Dive and safety Briefings, pick dive buddies to assign tasks and Commence Diving operations.

Dive and document each dive and what was videotaped and what further videotaping is still needed.

12:00 to 1:00 PM, Lunch and warm food for attendees

5:00 PM End diving operations for the day. De-briefing on the day's dive and documentation

5:15 - 5:30 PM - Begin to tear down dive site warming houses and other items.  Pack up equipment, and load into trucks and trailers.  Mark hole (s) (If more than one was cut).  Please drive off the lake single file and 5 cars lengths apart.

Please REGISTER by logging onto the website at, and click on "Events Calendar" and then click on Feb 22, 2020, to receive more details and to register for the Project.  (Registration is required)!  (No additional charge for this event other than pitching in for some food).

More details to come after you Register........................ 

Please bring a small donation of $15.00 for food and Propane for heaters.

Closing Report:

This is an Ice Dive for 3D Video Practice and Documentation on the Hopkins in Lake Minnetonka.  This was a one day only event!  

During the ice dive, the main objective was to document and practice the new process of 3D Photogrammetry on the Excelsior Stern wheeler boat on Lake Minnetonka.

This was also used to practice shooting 3D video photogrammetry to use for a much larger project in the future.  Please see the Project Schedule and or Project Archive for more information.

Please check out the underwater video taken by Wim Wickle.  Thank you Wim!!

Below are the results of the 3D video Practice during the Ice Dive.

Stern-wheeler Excelsior Video created by Ken Merryman 3DShipwrecks on Sketchfab

Hope you will enjoy the videos and 3D Animation of the Stern Wheeler Excelsior.  

Phil Kerber
GLSPS President
Program / Project Leader