The 12th Annual Boston GreenFest & TechExpo will be held at the Rose Kennedy Greenway and the Waterfront from August 16 to 18 and is a unique opportunity to explore environmental sustainability and green technologies through art, film, music, dance, exhibits and more.

The free event is expanding this year to include many new facets of interest including a Smart Cities Pavilion, demonstrating the amazing possibilities of a sustainable future. There will be a Boston GreenFilmFest, showing several iconic documentaries and films, including Straws, Terra, Pittsburgh to Paris and others.

An Eco-Ride & Drive will be set up, sponsored by Nissan, where attendees can test-drive electronic cars and experience the innovations in transportation. Additionally, there will be hands-on exhibitors present, both at the GreenTech Expo on Saturday, August 17, where attendees can explore robots, solar power and MagLev technology. At the festival, visitors can take part in eco-art and learn how to build their own vertical garden. An EcoFashion Show will highlight the importance of our clothes for our health and that of the planet. Accompanied by music, theatre and dance performances, Boston GreenFest is a true celebration of the environment and promotion for a sustainable future.

Events start at noon each day. Exhibitors close at 6 p.m. The Live Performance Stage stays open until 9 p.m. on Friday and Saturday, and until 6 p.m. on Sunday. The Boston GreenFilmFest will take place at Hennessy’s Upstairs every day from noon to 6 p.m., where nine films will be screened followed by discussion.

Cost: Free. Location: 296 State St., Boston. For more information, call 617-477-4840 or visit BostonGreenFest.org.