On the way up Strachan Road, you can turn left up a small road, (not exactly as illustrated) then work your way up a truly brutal hill. Wayne climbed it, I walked it pushing a 30 lb hardtail. It leads to the Bench trail back to the ferry terminal.
At the bottom of Toad's Ride with a detour or two, you go down to the bottom of No-Horses. A very bermed stream bed that is harder and safer than it looks.
Northwind and The Way intersection. Good signs off Northwind. Several trails intersect Northwind, most have signs like this. You can climb then, none of the grades are too steep.
If you get to this gate, you are at the bottom of Northwind, the main trail up to the top. It took a few tries to get here, my map reading skills could use some work.
After riding on the road for a few K, don't miss the left turn onto Strachan Road. Up the road a K or two and you are almost there. To the right is an entrance to Northwind, turn at the Child crossing sign.
I spent 3 days biking on Hornby Island this August. These pictures are more or less in order of the method you can use to get to the trials. You still need to buy a map at the bike shop at the Co-Op. Consider these illustrations of the map. Richard