A local tour guide business is a great option to start with little or no capital because it mainly requires knowledge of local attractions, good communication skills, and a passion for sharing your area's history and culture. You can start by offering walking tours or small group excursions using public transportation or clients' vehicles. Marketing through word-of-mouth, social media, or tourism websites like TripAdvisor can help you attract clients. With minimal investment in promotional materials or booking platforms, you can grow your business by expanding to different tours or niche markets like eco or adventure tourism.