Launched in 1997 by David Provost and a team of experienced underground professionals, Bacchus Caves designs and excavates unique caves for private and commercial clients. From an intimate, subterranean getaway for a photographer and his wife, to a 30,000-square-foot temperature controlled wine storage facility for a Sonoma winery, Bacchus Caves has established a premium reputation for creating a wide range of singular caves.


A veteran of the mining industry for over two decades, David Provost is known for his expertise, energy, straight-shooting attitude and uncompromising commitment to doing a job well. Working with him is a team that has earned a reputation for its innovative excavation methods, exceptional workmanship and onsite professionalism.  

Bacchus Caves is presently carving caverns into the hillsides of the San Francisco Bay Area, greater Los Angeles, and beyond. Caves range in size from 66 square feet to 42,000 square feet, and vary in function from music production studio, to art gallery, to dramatic dining chamber, to wine storage site. Excavated by Bacchus Caves, the Meritage Resort in Napa opened the world's first underground wine cave spa in May 2007. Anything is possible underground.