For a charter built around comfort, consider Sun Odyssey 439 "Aeriko" in Athens, Alimos marina, afloat since 2013. Calm and compact, the Saronic and Argolic gulfs are ideal for a relaxed week, with car-free Hydra and elegant Spetses among the highlights.
The 4-cabin layout hosts 10 guests in comfort, with 2 bathroom(s). Autopilot, GPS chart plotter, GPS chart plotter - cockpit, Bow thruster, Bimini top keep things easy underway, and Stand up paddle (SUP), Gennaker, Railing net (Safety net) are there when you want them. Book her for a week and let the itinerary write itself.