Several shots from different angles of university students on field trip at Huntsman Marine Laboratory in St. Andrews, of them leaving a building and walking through bush and field to sea, of them on seashore in separate groups, one group doing experimentations to find triangulation of tide, putting color in spray on rocks, teacher (a woman) giving explanations, taking measures with yard rules, of them discussing. Several shots from different angles of the other group of students picking up small rocks and seaweeds in a rock water hole surrounded by lots of seaweeds, students putting their samples in polythelene bags. Various shots of Huntsman Research Center.