They have a Marina where you can rent kayaks, paddle boards, and even boats!
The drive up is pretty steep. My old Honda CRV 2wd barely made it up. I would definitely recommend a 4wd rental for the weekend.
Hike the two mile Desoto Falls Trail near Helen to a pair of waterfalls where, legend holds, a piece of armor was found from DeSoto’s expedition in the mid-1500s.