Don't lose your gear! It gets expensive. Make sure everything is tied to the kayak if possible or has a float attached. 

Check out the Yak Attack Surface mount retractor, featuring T-Reign 36" Kevlar retractable gear tether, and 4" lanyard. This tether mounts in most kayak gear tracks. It'll quickly become an indispensable accessory to secure your gear.

T-Reign