We did a two hour kayak tour of the isletas and enjoyed it thoroughly. It was a nice workout with beautiful scenery, and we saw lots of interesting birds. Going by islands that were communities and homes was also fascinating. We saw kids bathing and people working outside, and it was a little glimpse at a life that is so very different from ours.
I'd recommend getting out for some exercise on the lake and check out the gorgeous islands.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.