There's so many!Visit Tegalalang Rice Terrace(and go zip-lining!)
Hike to waterfalls like Gitgit Falls or Tegenungan Waterfall.
Visit temples like Besakih Temple or the Ulun Danu Temple.
Learn to surf in Kuta or Canggu.
Honestly, though Bali is FULL of amazing things to see and do! Don’t be afraid to ask locals for recommendations or just explore and see what you discover.