I read about a hair salon cum spa in San Pedro, Ambergris Caye on a blog not long ago. I doubt there are a lot of those. As elsewhere, businesses with low capital investment are often quite risky for individuals. You didn't ask, but I would add: Belize is not without persons with unlimited resources, but because most folks would rarely indulge in pampering themselves, such outfits have very limited growth potential. Hotels and resorts arrange for beauticians to come to the customer.