Free yoga session for all ages under the Arch, presented by Yoga Buzz. Join Yoga Buzz to kick off a day of free events at the Gateway Arch. Start the day with an hour-long, all-levels (beginners welcome) yoga class led by Yoga Buzz founder Elle Potter. Then stick around to take part in either The Great Mississippi River Cleanup and The Great MonArch Migration Event – where area experts will lead monarch-themed activities, crafts and games! Bring your own mat or towel for yoga – we will have limited mats available to borrow.