Merrimack River Valley Chapter Trout Unlimited 075-holds free fly fishing classes annually. In 2014 over 150 students wanted to attend. They could only accept 116 students in 5 seperate classes, including a Ladies Fly Fishing Class. All the classes meet on a Saturday morning in May for a 2+ hour casting clinic. These classes are free are attended by people of all ages and walks of life. Families are encouraged to attend.