In efforts to address the lack of diversity across the geosciences, the International Ocean Discovery Program (IODP) and STEM Student Experiences Aboard Ships (STEMSEAS) program have worked to provide targeted ship-based research and training experiences aboard the JOIDES Resolution and across the U.S. academic fleet. These programs include the School of Rock professional development program for educators and STEMSEAS transit cruises for undergraduates. Both programs aim to take advantage of extra berth space available during transits and tie-ups to use the charismatic and adventurous qualities of these ships to attract a wide diversity of students towards the geosciences. It is the goal of both of these programs to use these introductory experiences to spark further interest and showcase pathways and careers available to all. Targeted recruiting focuses on participants from traditionally underrepresented groups, including students of color, community college students, first generation students, and educators from areas of high diversity. A new program A-STEP, Ambassadors for STEM Training to Enhance Participation (A-STEP), will run alongside these programs to provide transformative seagoing experience to cohorts of students interested in geoscience-related fields by drawing greater attention to the relevance of climate and environmental change for all citizens through development of educational storyboard and media shorts. These programs also provide opportunities for graduate student training and mentoring – opening up pathways for graduate students to develop their leadership skills, create helpful professional relationships through growing their networks, and pass along advice to younger students that is timely and relevant. This presentation will include research results garnered so far from these programs and share lessons learned and best practices. Opportunities to become involved going forward will be shared.