Support TIA

Own Your Own Shoal Marker

To help support shoal marking, TIA offers its ” Your Own Shoal Marker” Program.

Become A Sponsor

TIA’s Sponsorship Program provides an opportunity for local businesses to support TIA.


TIA is a not for profit charitable organization that receives no government funding.


TIA’s most important asset is you, our members. Without your membership support, TIA would not be able to continue its programs and activities throughout the year.

Why Your Membership Matters

Each year more than 300 shoal markers are placed throughout the 1864 Islands. TIA is responsible for placement in Canadian waters and in partnership with Save the River for placement in American waters. Think how dangerous the river would be if there were no shoal markers. For the safety of all of us, our family, friends and visitors who boat in the Thousand Island region, please be a TIA member and supporter.