It's not surprising that boat rentals in Miami have soared during COVID-19. It seems that whenever I look out my balcony onto Biscayne Bay I see boaters, kayakers, paddleboaters and water skiers. Especially with not a lot of other things going on, and being on the water can be an easy place for social distancing, all matter of water sports is a great thing to do these days. How about it? Here are seven picks for the best boat rental in Miami, yacht rentals, cruises, and other watersport rentals.