Tours and tastings have long been a big part of tourism here in Wine Country. Now, with the legalization of cannabis in California, new start-up tour operators are looking to expand into that realm. : Legal recreational use of marijuana in California is expected to quickly grow into a multi-million dollar business. That includes tourism, and cannabis-focused  tour operators are already eyeing Sonoma County as a prime destination, with one already up and running, and more to follow soon.