Examples from the U.S.

Safety and Risk Assessment
NatureYear at Common Ground, New Haven, CT

Hiking, Fire, and Water Safety
NatureYear at Common Ground, New Haven, CT

International Resources

Balancing Risks and Benefits In Outdoor Learning and Play: A Breifing For Teachers and Practitioners Working with Children
Tim McGill, 2016

Specific Activity Risk Benefit Assessments
Learning Through Landscapes, UK

Risk Management
Learning in the Leaves, UK

Sample blank Risk Benefit Assessment 
Learning in the Leaves, UK

Managing Risk in Play Provision: Implementation Guide
Play England, published by the Play Safety Form, 2012

Nothing Ventured...Balancing Risks and Benefits in the Outdoors
Tim McGill, published by the English Outdoor Council, 2010