Outdoor Travel Guides is a category encompassing books and resources that provide information and advice about engaging in outdoor activities and adventures. It includes guides for hiking, detailing various trails, difficulty levels, and necessary equipment. It also covers a wide range of other outdoor hobbies, from bird-watching to camping, offering practical tips and knowledge to enhance these experiences. As part of the hobbies genre, these guides serve both novices and experts, helping readers to explore and enjoy the great outdoors.