Three crewed motor yachts at Puerto Banús, averaging 19 metres, and none of them carries a weekly rate. Read those three facts together and the product is clear: this is Marbella day charter, not a week afloat. An enquiry here is for an afternoon or an evening with a crew, and the price comes back per hour or per day.
Puerto Banús is the point. It was built in 1970 as a marina for exactly this market and it remains one of the most recognisable harbours in the Mediterranean — a line of large yachts along the front, the Sierra Blanca behind it, and Marbella a few minutes away. Arriving and leaving by boat is most of what people book.
The coast either side is the Costa del Sol: long, developed, mostly sandy, with marinas at intervals and very little in the way of natural anchorages. West toward Estepona and Sotogrande the shoreline quietens; east toward Fuengirola and Málaga it does not. In settled weather the boats anchor off the beaches for swimming, which is the other half of a day out.
Two notable things are close and both are borders. Gibraltar is about 40 nautical miles west, with the Rock and the Strait beyond it; Morocco is roughly 30 miles across that strait. Either means clearing out of Spain and in again, and neither is part of a day charter — but they explain why this stretch of coast feels like a crossroads.
The honest summary: a small, specific, expensive market doing one thing well. If you want a Spanish sailing week, the Balearics hold 306 of our boats and the Canaries another 55.