The Pass Alsace is the top deal for your stay!
 

Wildlife parks, castles, museums, exhibitions, fun activities
The Pass'Alsace is both a pass and a digital tourist guide enabling you to visit some of Alsace's finest sites under the very best conditions. The Pass is available in several versions: the 3-day Pass’Alsace for tourists who are in Alsace for several days, valid for three days (whether consecutive or otherwise) over a total period of 14 days; in addition to the 48-hour and 24-hour MiniPass for those here for a weekend break or a short stay.
The validity period begins on the date the Pass'Alsace is first used.

www.pass-alsace.com/lang/en