We are relying totally on a well reviewed local guide through Tours by Locals. If you go to the site, there are, I believe, more than 75 guides. It is a bit of comparison shopping but most have detailed reviews and the tours they provide are fairly well detailed. Most will tailor the tour to your particular interests. What we did was provide a list of desired outcomes (eat like a local, local crafts people, etc. in addition to regular tourist sites) and let the guide tailor the itinerary as best she sees fit. We appreciate the ease of the pre-tour stay from Regent such as the booking of the hotel, transfers and breakfast every morning. Getting there three days early allows for acclimation prior to the cruise itself. We have simply chosen to substitute our own tours for the ones being offered as part of the pre-stay package. Like I said, win-win.