Here are a few suggestions for your next trip from Garching(Alz)

In 2 hours, you can reach München, Salzburg, Neufahrn(Niederbay), Oberlindhart, Niederlindhart, Ampfing, Schwindegg, Dorfen Bahnhof, Hörlkofen, Markt Schwaben...

In 3 hours, you can reach Mallersdorf, Laberweinting, Sallach, Geiselhöring, Perkam, Radldorf(Niederbay), Straubing, Straubing-Ost, Ittling, Sand(Niederbay)...