The plan is over the next few years to develop, operate and run a range of unique travel experiences - each which could develop into a sustainable product line on its own. These include: culinary tours / experiences; green / sustainable tours; experience that have a strong focus on social innovation in a country... These can all be operated with the same operations team, but the real question is whether to target niches I am best to create multiple brands each targeting a separate niche, or maybe multiple sub-brands. Or is it best just top create one very strong brand. Obviously running multiple brands is not an easy thing! Will be relying on a combination of online and offline marketing and sales.
I would suggest you focus on one brand initially but make it flexible. Once you have established a brand you could look at either extending it or diversifying into segments. Suggest that you look at developing a "Unique Travel Experience" banner that can be used for a variety of your niches but I would start with the one you are most familiar and experienced. Let your customers drive your expansion.