This article focuses on a very specific aspect of maritime law, i.e. the remedies that exist under Dutch law in order for a marina operator to pursue a claim against a vessel owner either based on a contract or based on torts. This is not a straightforward matter, as it involves various areas of law as well as specific maritime legal issues, for instance contract law, the right of attachment, including the 1952 Arrest Convention,1 and the right of retention. After a general introduction about pleasure craft and marinas in the Netherlands, and some general considerations about the legal framework that applies, an overview of the possibilities will be given. The various requirements that need to be met will be discussed, focusing on the specific situation of a claim by a marina operator against a vessel owner. A specific issue that may arise in respect of a marina operator’s claim against a vessel owner is that it is not always clear how the agreement that forms the basis for the claim should be qualified. This is of importance, as the way an agreement is qualified, and more specifically which rights and obligations each party has under the agreement, also determines the remedies that are available to the claimant. The right of retention is only available if a certain degree of control is exercised over the vessel, as the right of retention is the right to suspend the obligation to return the vessel, and this sometimes constitutes a problem in respect of a marina operator’s claims. This will be explained in more detail below. Certain specific provisions in the Civil Code concerning the right of retention of vessels will also be addressed. As it is not necessary to obtain permission from the courts to exercise a right of retention, this is often the most straightforward option for a marina operator. If it is not clear whether a right of retention exists and/or may be exercised, another option for enforcing a claim is an attachment, which in the Netherlands is also possible before a title for enforcement is obtained ...