If you are a private owner, you can rent your boat:
With captain, in "co-navigation": in this case, you are the skipper.
Without captain, in a bareboat: you are not present on board, the tenant must therefore hold the necessary license to sail and your boat must be insured for rental between private individuals.
If you are a professional owner, you can rent your boat:
With skipper, by hiring a professional skipper who will be the skipper.
Without skipper, in a bareboat: the tenant must also hold the compulsory license to sail.
In both cases, your boat must be insured for the rental.