Finding ways to connect scattered heritages in an eco-museum constitutes an issue. Solutions include providing excursions around the region. This article aims to demonstrate how much demand can be expected for the excursions of an eco-museum in Higashihiroshima City. To this end, an online questionnaire survey was administered to citizens of Hiroshima Prefecture, and an opinion survey of Hiroshima University students was conducted. According to the online survey, 56.0% of respondents were interested in participating in the excursion on the theme of “water and liquor”, and 44.9% were interested in the excursion regarding “wild living and rural life”. Further, 40.3% were interested in the “biomass-related” excursion and 30.3% were interested in the excursion on “local history and legends”. The opinions of university students were as follows. Almost half the students stated that the presented opportunities are valuable as they want to learn about the area surrounding the university and there are few opportunities to interact with nature in everyday life. Conversely, the other half of participants deemed the participation fee excessively high. The results confirmed that there is a potential demand for excursions, and that it exceeds the capacity that the museum can manage.