During another of my recent sailing trips, a group of friends and I chartered the Kairos, by Sailing-Classics. This 125 foot yacht has 9 main passenger cabins (room for up to 18 passengers), a crew of 5 including a captain, engineer, chef, and 2 deck hands. While cabins are not particularly spacious, each has its own bathroom, and its important to remember that not a lot of time is spent in ones room, anyway. Theres an eating area below deck and lots of room on top for sunning, taking meals, reading, or whatever. Dinghies are used to take passengers to shore, unless the boat captain chooses to dock. I chose to swim from the boat to shore for a bit of daily exercise. This particular yacht can be rented out to groups (generally ranging from 12-18 passengers) or one can speak to the company about joining as an individual or couple. Pricing was approximately $4,500 for a cabin for the week about $640 per night. However, if you come as a couple, the rate is a good deal, since all meals and, of course, transportation, are included (liquor costs extra). The captain is also accommodating, and will set a course ad hoc if guests have preferred places to visit, as long as the itinerary is appropriate.
The nice thing about the Kairos is that its larger than most private yachts, and certainly a lot cheaper. While more expensive than many commercial cruise ships, those vessels are often prevented from accessing some of the oceans most beautiful places. By having your own vessel, you feel you truly own it.
When considering a private yacht, the key issues to keep in mind, besides cost and the type of ship, are the itinerary (will there be variety to what you see?), weather (be careful that winds arent too strong, as that wont make eating on deck very easy), and the quality of the chef (he/she should be very good, since almost all meals are taken aboard).