Swimming.

No pool at your hotel? Fret not, the Çirag˘an Palace Hotel’s Riviera-style splasher is the snazziest and you can sit by it all day. It’s € 160 at w/ends, € 100 w/days, but no-one said glamour was cheap, darling. The next door FS Bosphorus is quieter and more private (see Accom. for both).