How would you say "yesterday I walked in the park"? Since that's what I put and it was marked wrong
Maybe 'Ich bin gestern im Park gegangen' Dative case (in dem) as it's not indicating motion towards.
You would say: "Ich hab' gestern einen Spaziergang im Park gemacht." Direct translation: "I made a walk in the park yesterday." - In German, if you walk for the purpose of walking, you use the phrase "einen Spaziergang machen" or "spazieren gehen". Spazieren comes from the Italian word spaziare. (https://de.m.wikipedia.org/wiki/Spaziergang , for full verbose action. Try Google Translator on that page or some of the synonyms there to dive into the world of German promenading)