Mallorca rewards a little route planning. The island is large enough that a boat leaving Palma is solving a different brief from one leaving Port de Pollenca, Alcudia, Port de Soller or Colonia de Sant Jordi. A Mallorca boat rental can mean a simple independent swim day in Palma Bay, a family motorboat along the southeast coves, a catamaran lunch off Es Trenc, or a skippered passage beneath the cliffs of the Tramuntana coast. The best choice starts with the coast you want to see, then works backwards to the departure port, trip duration and boat type.
For a first day on the water, sheltered bays and a route with two or three proper stops are usually more satisfying than trying to circle a large part of the island. Motorboats are useful when distance matters; catamarans give groups a stable platform and generous deck space; sailboats suit a slower day built around the journey; and a private yacht charter in Mallorca can add range, shade and service. Licence-free boats are best treated as local craft for nearby coves rather than a way to reach remote landmarks.
The island's clear water depends in part on Posidonia oceanica seagrass. Anchors must go onto permitted sandy ground, never into seagrass, and protected areas may use regulated mooring buoys or require advance permission. Cabrera is the clearest example: visiting with a private vessel requires the relevant navigation authorisation, and overnight anchoring has a separate permit. Your owner or captain should confirm the live route, wind, berth or buoy arrangements before departure.