If you are into nature photography you may have heard of an organization called NANPA. This is the North American Nature Photography Association. Make sure to take the time and consider joining them as there are several member benefit for avid nature photographers as well as those of us who host workshops and photography tours. It is a great way to network with like minded people as well as gaining access to webinars from industry professionals.
They also work with insurance companies to get you good coverage for equipment and general liability. You can find out more about them here: http://www.nanpa.org/membership/video/