Although it hasn't quite made it to national holiday status, Residents’ Day, established more than 60 years in an attempt to strengthen Tokyo's communities, sees many museums, galleries and parks (generally those run by the Tokyo Metropolitan Government) offer free entry. It takes place annually on October 1, and most schools are closed on this day, so expect crowds. (Full list below.)
Hama-Rikyu Detached Garden, Kyu Shiba Rikyu Garden, Koishikawa Korakuen, Rikugien, Rikugien, Former Iwasaki House Garden, Mukojima-Hyakkaen Gardens, Kiyosumi Teien, Kyu Furukawa Gardens, Tonogayato Teien, Jindai Botanical Garden, Tama Zoo, Ueno Zoo, Tokyo Sea Life Park, Inokashira Nature & Culture Park, Yumenoshima Tropical Greenhouse Dome, Tokyo Port Wild Bird Park, Edo-Tokyo Museum (only permanent exhibition), Edo-Tokyo Open-Air Architectural Museum.
※ Tokyo Metropolitan Teien Art Museum will be closed due to construction. Tokyo Metropolitan Museum of Photography will also be closed due to replacement of collections.