An email circulating says that now is the time to check out the herring run in the James River:
If you have never had the opportunity to see the huge schools of fish in the James river, especially along the Pipeline Rapids NOW is the time. I have never seen the schools of fish this thick. The water is relatively low and clear, great for seeing the huge schools
Hike along the pipeline trail starting near 14th street on the North side of the river and walk upstream along the pipe. Polarized sunglasses will help you see the vast schools of herring that have swum upriver to spawn.