e * Boat trips to Constance and Schaffhausen * The Oehninger beach has a sandy beach, children's pool, playground, a volleyball court, table tennis, and restaurantMore travel info about Oehningen: ??hningen is a town on the western edge of Lake Constance where it forms the border between Switzerland and the district of Konstanz (or Constance) in Baden-Wuerttemberg in Germany.