Rapperswil-Jona is a municipality in the Wahlkreis (constituency) of See-Gaster in the canton of St. Gallen in Switzerland. Besides Rapperswil and Jona, which were separate municipalities until 2006, Rapperswil-Jona also includes Bollingen, Busskirch, Curtiberg, Kempraten-Lenggis, Wagen, and Wurmsbach. The official language of Rapperswil is (the Swiss variety of Standard) German, but the main spoken language is the local variant of the Alemannic Swiss German dialect. Today On January 1, 2007, the municipalities of Rapperswil and Jona merged to form a new political entity. After the merger Rapperswil-Jona had a population of 25,777 (17,799 from Jona and 7,601 from Rapperswil). This makes it the second largest town in the canton of St. Gallen after the capital St. Gallen itself. On the population was . Rapperswil-Jona is one of the most significant traffic junctions in the region, and Rapperswil railway station is a nodal point for the Swiss Federal Railways, Südostbahn and S-Bahn Zürich lines. Zürichsee-Schifffahrtsgesellschaft (commonly abbreviated to ZSG) operates passenger vessels on the Lake Zürich, connecting surrounding towns between Zürich-Bürkliplatz and Rapperswil. The Seedamm, a moraine of the across Lake Zürich, links Rapperswil with Hurden (SZ) on the other side of the lake. This connection has been part of old pilgrimage routes. From early centuries, a wooden footbridge led across Lake Zürich. At a later stage, the bridge was replaced by a stone dam. In 2001, a new wooden footbridge was opened alongside the dam for the first 840 meters of the crossing. It was built in the same place as the original bridge and links Rapperswil with the nearby bridge chapel (Heilig Hüsli) built in 1551. The main sights are concentrated in the centre of Rapperswil and can be seen while strolling through the medieval alleys. The main sights of Rapperswil are its roses, the castle, the reconstructed wooden bridge to Hurden with its bridge chapel, and a Capuchin monastery. There are also a number of churches, chapels, and the nearby Wurmsbach Abbey. In the surroundings of the town there are a number of churches. St. John's Church in Rapperswil was built around 1220 and became Rapperswil's parish church in 1253, the Chapel St. Ursula in the village of Kempraten was built around 885. The St. Dionysius Chapel, dedicated to Denis, the first bishop of Paris, was reconstructed in 1493 and attracts pilgrims. The nunnery at Wurmsbach (Wurmsbach Abbey) was established in 1259 and today houses an institute for