The context Socio Scientific Issue (SSI) for learning is not only a global issue. Local environmental problems have a higher relevance to students' knowledge in learning. This study aims to analyze the potential and impact of crab peelings household industry waste in Rembang Regency and its potential as a SSI context in Science Learning. A descriptive qualitative research method was used in this study. Data collection was conducted using interviews, observation, and literature study. The results showed that the waste of the crab peeling has the potential to be utilized, including as an ingredient for making petis, natural food flavors, sources of calcium and phosphorus in food, ingredients for making organic fertilizers, corrosion bio inhibitors, fish and shrimp feed, metal adsorbents, food preservatives. Crab waste that is not managed properly harms the environment and society including odor contamination, contamination of groundwater and surface water, and as a breeding ground for flies and bacteria which has a serious impact on public health. The environmental problems caused by the waste from the crab peeling household industry in Rembang Regency are controversial social problems, with no immediate solution and require consideration of various factors, such as moral, ethical, cultural, traditional, economic, political, and environmental, and require scientific understanding and community agreement for resolution. Therefore, the study of this matter has the potential to be raised as an SSI context in science learning.

Educational tourism or edutourism is a tourism activity that aims to provide learning experiences and skills development. Universitas Negeri Semarang (UNNES) has developed edutourism activities with various themes, but this edutourism is still less well-known to the public. Therefore, the environmentally friendly concept is applied as a characteristic of UNNES edutourism. This activity aimed to increase knowledge, understanding, and skills in developing environmentally friendly edutourism for students. This environmentally friendly edutourism service activity was carried out through three stages, 1) introducing environmentally friendly edutourism, 2) introducing environmentally friendly energy, and 3) activity evaluation. The series of edutourims activities carried out on Wednesday, June 19, 2024, involved elementary school students (SD) who particpated in various activities, including colouring gypsum animal characters to increase creativity and introducing environmeltal conservation, as well as a tour of the Innovation House to understand environmentally friendly energy products. In addition, participants also toured the campus using electric cars that introduced renewable energy applications. The activity results showed that all participants were enthusiastic, understood the environmentally friendly concept, and were interested in participating in similar activities in the future.

Pokdarwis Gunungsari Pucuke Kendal (Mitra) Ngesrepbalong Village, Limbangan District, Kendal Regency was formed in 2016 through a village deliberation forum and in 2022, Ngesrepbalong Village was officially designated as a tourist village based on the Decree Kendal Regent Number 556/343/2021. Gunungsari Pucuke Kendal Pokdarwis is led by Wahyudi as chairman with a board of administrators who manage several mainstay tourist attractions. The local potential of Ngesrepbalong Village consists of natural tourist attractions, biodiversity, cultural attractions and local processed products. The problems experienced by partners are (1) The problematic aspects are related to branding and promotion of tourism potential that has not been optimal. Not yet there is a design destination branding as identity For introduce tourist Village It's so long. For example, improving tourism infrastructure to support branding and the identity of tourist destinations, (2) Conditions in the field show limited human resources to promote tourism through social media, (3) the absence of technology/tools that help sort coffee by size, so that sorting is done manually. The output targets of the solutions offered include (1) Availability of digital tourism packages presented on websites and social media, (2) The availability of embossed letter branding for regional identity, (3) Coffee grader machines are available, (4) 200 environmentally friendly coffee packages are available from paper craft, and (5) As many as 15 Pokdarwis members and UMKM post-harvest coffee processing have increased their capacity and knowledge in technology-based business management. Plan activity Which proposed (1) Socialization And coordination beginning, (2) Training administration and planning professional BUMDes business, (3) Branding training through destination branding design (4) Training technopreneurship-based business management , (5) Facilitation of TTG grader machines and environmentally friendly packaging (5) Mentoring, and (6) Evaluation. The outputs of community service are (1) Accredited national journals, (2) Print/electronic media publications, (3) Video documentation, and (4) increasing community knowledge and skills.