Racing Marks

2021 Ashbridge’s Bay Treatment Plant Work Zones
During the summer, the treatment plant project will be working in the water. These work zones will be marked with temporary buoys and are not to be sailed through. Map showing coordinates for the zones here.

ABYC Racing Marks
The ABYC Racing Marks are yellow cylinders approximately 7 inches in diameter, with even numbered marks having a black top. They are laid out in a one nautical mile diameter circle around a centre mark.

You can download the compass rose here.

Mark Latitude Longitude
0 N 43°39.219′ W 79°16.665′
1 N 43°39.630′ W 79°16.272′
2 N 43°39.309′ W 79°15.986′
3 N 43°38.935′ W 79°16.098′
4 N 43°38.728′ W 79°16.542′
5 N 43°38.809′ W 79°17.058′
6 N 43°39.130′ W 79°17.344′
7 N 43°39.503′ W 79°17.232′
8 N 43°39.710′ W 79°16.788′