Blue Grotto
It is not a Marian cult site, as is often assumed. It began as a love affair, the love of a Rodinger – he later even became mayor – for a beautiful young girl named Maria Zimmerer. Unfortunately, this girl died of appendicitis at a very young age and is buried in Munich, where she had been employed. In 1929, the enamored Rodinger erected this statue in memory of his beloved, carved from sandstone by the stonemason Hofinger from Oberkreith.
There was no road to the grotto at that time. So the statue and all the materials had to be transported by boat across the Regen River from Wiesing. "Dieß'n Wack" was involved in its installation and also immortalized himself with a small painting to the left of the statue. The pastor of Roding at the time had concerns about the grotto, arguing that the statue might be considered a Marian cult site and thus harm the Heilbrünnl (Holy Spring). But this concern was unfounded.
In 1977, the Roding-Mitterdorf Hiking Club built a footbridge around the grotto to Fischerwinkel, making it easily accessible on foot. Members of the Wiesing Volunteer Fire Department have thinned out the trees and bushes in front of the grotto to provide a better view from Wiesing.
Source: Local information