National Get Gnarly Day is celebrated on July 29 in the United States, encouraging individuals to embrace unconventional experiences and push their boundaries. Founded in 2016, this holiday invites participants to try new activities that may initially seem daunting or 'gnarly.' Typical customs include challenging oneself to step out of comfort zones, whether through adventurous activities, unique culinary experiments, or learning new skills. Social media plays a significant role in the celebration, with participants sharing their 'gnarly' experiences and ideas using dedicated hashtags on platforms like TikTok and Instagram. Brands often engage with the holiday by offering promotions on outdoor gear, action cameras, and innovative food items, aligning their products with the adventurous spirit of the day.