Home Located between Burk's Falls and Sundridge Ontario, Horn Lake is a clean and peaceful lake where memories are made. Sign Me Up Join / Renew Fire Ratings The Municipality of Magnetawan Ryerson Township Current Weather The Weather Network Web Cam The weather cam is located in a rural area about 3km from Sundridge. 2022 Boat Parade New! Fire Hut Video Horn Lake Nautical Chart Know the lake depths and hazard locations before you launch your boat. (click to enlarge) Search #HornLakeON Like our HLPOA Facebook Page to stay up to date. We need your pictures! Send us your pictures to add to the site. Good Times on Horn Lake Many more images of fun on the lake can be found here. And find videos of Horn Lake here. Contact Us Your Name (required) Your Email (required) Subject Your Message What is thirteen minus 5?