Spending the night in Geneva can be financially taxing—rates are comparable to those in most European capitals—but you'll limit the damage if you can take advantage of special weekend or group deals. One side effect of Geneva's popularity as a convention center is the willingness of the hotels to drop rates at nonpeak times. Book well in advance, since large blocks of rooms fill up during major events, and remember that rates plummet most dramatically at luxury hotels.
Also keep in mind that many hotels close for a short period during their region's off-season; closing dates often vary from year to year, so be sure to call ahead and check.
