Thirty Island Lake

LocationOntario

Coordinates44°34′16″N 76°35′57″W / 44.57111°N 76.59917°W / 44.57111; -76.59917

BasincountriesCanada

Thirty Island Lake
Thirty Island Lake
Location	Ontario
Coordinates	44°34′16″N 76°35′57″W / 44.57111°N 76.59917°W / 44.57111; -76.59917
Basin countries	Canada

Thirty Island Lake is a lake of southern Ontario, Canada, located northwest of Frontenac Provincial Park in Frontenac County.