Palladio Hotel Spa Resort
Set on Giudecca, overlooking Saint Mark’s, this sleek spa comes complete with hamman and views back across the water. You can even have a massage in the hotel’s glorious gardens, once part of a sixteenth-century convent.
A cycle ride leads south past grand hotels and manicured beaches, following the sea walls into oblivion. Combine a swim with a seafood lunch. You can do similar routes by bus or by scooter.