Summer gets all the credit for being an outdoorsy season full of swimming, beach times and bike riding, but really, wouldn’t you rather be outside in the fall, especially when you’re planning on breaking a sweat? Rev up your autumn workout with Beastanetics. Taught by personal trainers Tim Haft and Shana Brady, Beastanetics is a high intensity workout in McCarren Park that really is both challenging and accessible for a huge range a fitness levels. Yes, it’s hard, but it’s also really fun, and very rewarding. Classes are on Tuesday and Thursday mornings at 6:45am, 8am or 9:15am; from warm-up to post-workout stretching the whole thing takes about an hour and is an insanely mood-enhancing way to start your day. The upcoming session starts on Oct. 15 and goes through Nov. 21. Try it out at Bushwick Inlet Park on Sunday, at 9am if you’re curious–the first class is always free.