One of the first places I rode off-road was a chunk of forested land formerly used to dump old cars and recently turned into a forest park. A paved bike path was built through it, and the dirt bikes got kicked out. I rode on the old dirt bike trails a fair bit at first. This piece of property is on a floodplain, so it gets pretty swampy. On one ride with my buddies, I buried my bike up to the hubs in mud 3 times (each time resulting in an endo into the mud). That was the last time I rode there.