If you find traveling with 700 other people exhausting, shrink the company you keep to a fraction of that with Regent Seven Seas Cruises' recently launched Circle of Interest tours (877/505-5370;; from $3,298 per person, double; Circle of Interest tours from $160 per person), designed to introduce passengers with similar passions while sailing through Europe. During the food and wine tour on the Mediterranean, for example, take a culinary walk through the romantic Greek village of Pyrgos, and have private meals and tastings at three Côtes du Rhône vineyards. Only 40 participants are accepted for each session, making these circles tight-knit, indeed.