Great for dates.
People in movies are always going on romantic dates where they sit in a little rowboat together and drift blissfully around a pond while swans swim around them and they eat bonbons and drink champagne.
But the romantic effects of the rowboat are pretty much ruined if you spend the whole date huffing and puffing and sweating because rowing the rowboat was actually a lot more difficult than you had anticipated.
Before you go on the rowboat date, practice on one of these first. Make sure that you're not only up to the challenge, but that you're ready to make the challenge look easy. And also, don't forget to pack some life vests. Just because you're strong enough to row the boat, doesn't mean that you're balanced enough to keep it from tipping over.