today is andechs (monastery) mostly known as a pilgrimage destination and for its beer + agricultural products like milk and yoghurt. of course, andechs is loved by both the munich locals and tourists as a nice day trip destination, which you can easily combine with the visit to the nearby seefeld castle and / or to the lake ammersee.
just to make it sure, andechs is not an insider tip and never was. you have to be prepared for mass tourism, but it is nice anyway. and yes, you can reach it (from munich) not only by car but also by the regional train s-bahn line S8 to herrsching (at the lake ammersee) and then take a bus to andechs from there or - much more recommended - to walk through a nice forest in 45 - 50 minutes up to the monastery, will you? 😊