If you live near a coastal city in South Africa there will be a few boats in need of regular cleaning. Start your own business cleaning boats.
Cleaning a boat is more lucrative than cleaning cars but requires more knowledge and care. Depending on the boat, you will need to clean the hull, decks, seats, sleeping quarters etc. It is advised that you do some research regarding best practices, cleaning techniques (waxing, buffing, scratch removal etc.) and equipment needed before you go looking for boats to clean.