Bear Grylls guides you to cross a river, forge a trail, and stay safe while out hiking in this helpful handbook. Bear Grylls Outdoor Skills Handbooks series: Embark on a wild adventure with Bear Grylls! The Bear Grylls Out Door Skills Handbooks offer step-by-step instructions and tips from Bear Grylls to prepare young adventurers for the wilderness. Paperback book. 48 Pages. Ages 7 and up.