Marathon OG is a potent OG indica strain known for its euphoric and relaxing effects. This strain is a very potent strain that offers high levels of THC that might overwhelm a novice. When it comes to the smell and flavor of cannabis, Marathon OG lives up to that legacy. This strain hit me right in the chest on my first couple hits, and it only got good from there. My entire body and mind was relaxed after half a joint!