The island isn't very big. The bus stops at a couple of places when it comes through, but the best way to get around is to walk, bike, or drive. Walking and biking are especially nice since there are several pedestrian/cycle paths.
Bicycle rental is possible from:
Freizeitcenter[3] located at campground Sandseele, Bradlengasse 24 (north-west end). They have regular bikes, tandems and trailers for towing kids.
Schopflen castle ruins, (at the end of the causeway, just before you're properly on the island). Originally served as a point of defense for the island at low tide. Destroyed in 1366. Now it's got a platform that allows you to watch part of the wildlife sanctuary.free. edit
St. Maria u. Markus Cathedral. This was the abbey church and reached its present shape in the 11th century. The treasury (open Apr-Oct, 11:00-12:00 and 15:00-16:00, closed on Sundays) contains relics of St. Mark, among other treasures. Behind the cathedral is an herb garden, a reconstruction of the abbey herb garden. edit
St. Peter and Paul Church. Features late Romanesque wall paintings from the early 1100's and has rococo ceilings from the 1750's.edit
Georgskirche (St. George's church), (the first church you see upon arriving on the island). Contains relics of St. George, and wall paintings from circa 1000edit
Water sports. Rent a motor boat, paddle boat, canoe, kayak, sail boat or row boat. Take windsurfing lessons. All this is offered by the Freizeitcenter located at campground Sandseele, Bradlengasse 24 (north-west end).edit
Guided tour. Island tours are offered daily by the Freizeitcenter located at campground Sandseele.edit
Ice skate. If you happen to be here during the winter, and the winter happens to be a cold one, the lake will freeze in the bay beside the island. You can skate, play hockey, and buy mulled wine and currywurst from stands on the ice.edit
Ganter Hotel Mohren, Pirminstrasse 141 (middle of town), ☎ +49 7534 9944-0, [6]. This hotel has a spa and a restaurant.edit
Seehotel Seeschau Seeterrasse, An der Schiffslände 8 (on the south shore), ☎ +49 7534 257, [7]. Rooms vary--some have jacuzzi, whirlpool, lakeview. Has a restaurant.Single €89-98, double €128-180. edit
Hotel Löchnerhaus, An der Schiffslände 12 (on the south shore), ☎ +49 7534 803-0, [8]. Has parking, garden terrace, restaurant.Single €85-125, double €150-210. edit
Hotel-Restaurant Kreuz GmbH, Zelleleweg 4 (west end near the entrance to the island), ☎ +49 7534 332, [9]. Has restaurant.Single €62-92, double €96-114, suite (up to 4 people) €124-164. edit
Hotel Insel Hof, Pirminstraße 156 (middle of town), ☎ +49 7534 246, [10]. Some rooms have lakeview.Single €50-65, double €74-108. edit
s'Hobelbänkle, Rosendornweg 5, ☎ +49 7534 1383. .Double €76 for one night; price is reduced the longer you stay. edit
Hotel Garni, Am Vögelisberg 13, ☎ +49 7534 9210-21. .Single €, double €. edit
Campground Sandseele, Bradlengasse 24 (north-west end), ☎ +49 7534 7384, [11]. .Adult €6.50, kids €2, under 6 free, €3.50 to €7 for your tent/motorhome/etc. edit