They keep you warm when hit by a chilling splash, and provide an outer waterproof layer over a wetsuit or fleece sweater. They are nice to have when recreational paddling. More advanced versions feature gaskets at the ankle, that, when combined with a dry top, will perform a lot like a drysuit. Footwear will protect your feet and keep them warm. Most people prefer booties for kayaking because they are comfortable and keep the feet warm, especially paired with fleece socks.
Sandals are versatile footwear that can be worn in the water and around camp.
These items are highly recommended for trips both long and short. If something does happen, you will be glad you have these items. Always carry these items and know how to use them. Dry bags do just what their name implies keeps your stuff dry. They come in different shapes and sizes.