This guide contains a collection of activities which are designed to provide opportunities for 4-H voluteers and youth in New Jersey to get involved in learning about the marine environment. The guide is divided into five sections which deal with habitats, organisms, career exploration, community involvement, and additional marine activities. Each of the sections is comprised of individual lessons, with the intention of including the necessary information for volunteers to provide marine education for 4-H youth. Each lesson is further broken down into seven categories: (1) an introduction; (2) the goals of the lesson; (3) background information; (4) preparation reminders; (5) questions for discussion; (6) additional resources and ideas; and (7) references. The appendices contain reproducible worksheets for use with various lessons and activities, a field trip planning guide, project requirement guidelines, record keeping information, and lists of additional resources. (TW)