GovHack is a 24-hour hackathon that brings together passionate and skilled people from various backgrounds to develop applications using government open data. Over 100 participants from companies, non-profits, and different levels of government collaborate in teams. They have access to datasets from agencies like the Bureau of Rural Sciences and Australian Bureau of Statistics. The resulting projects cover skills like web development, user experience design, and geographic information systems. Examples include applications that map public toilets and allow users to rate them, provide local statistics and maps to learn about an area, and correlate government contract data with political donations.