OK, this is rather second hand, but in a discussion of the quality of cooler ice for sailors, my Dad tells me this anecdote about his friend finding the "best ice" at the marina in Deseronto, ON. The block of ice they sold him was so cold, it froze all the water in the bottom of his cooler, and kept it frozen for two days. Need a block of ice? Consider Deseronto Marina, or so I'm told.
