Boating on chilly days is best enjoyed when you're prepared. Warmth is the key, and more is always better. What do I mean by that? If you think a sweater is all you need to be comfortable, bring two. Think tennis shoes will keep your toes toasty? Bring winter boots. Dress in layers so you can add or subtract clothes as conditions dictate. Be prepared for sun, rain, wind and even snow. Weather can change on a dime any time, but when it does so in spring or fall, it can be dramatic. Temperature swings of 30 to 50 degrees can happen in the span of a single day. Modern technology can keep you warmer than ever, thanks to heated outerwear that plugs right into the 12-volt power outlet in the console. Gerbing's is one brand I recommend, as do fellow boaters, motorcyclists and other outdoor enthusiasts.