I tried out an SUP for the first time recently. Definitely had fun on it. Was at a beach where the waves only broke on the sand bar at low tide and turned into shore break at high. With an SUP, was able to ride the high tide bumps over the bar without them ever breaking.
Balance wasn't much of an issue, but paddling and getting into position on a wave was much more challenging than I would have thought.
I enjoyed just paddling up and down an empty beach and riding in bumps as they came. Pretty mellow experience.
I love the perspective you get on the water and everything in the water while standing, I can see all the way to the bottom in pretty deep water normally. Lots of fun stuff swimming around people and they have no idea