A REI Co-op Guide to National Parks is a comprehensive hiking guide to the 50 most-visited national parks in the United States, including more than 40 popular outdoor recreation sites like lakes, mountains, deserts, forests, coasts, and more. This guide will help you plan and explore hikes in the national parks, with detailed trail information and offline maps to guide you on your adventures. You can choose from four difficulty levels to find the hike that's right for you, and even add an optional GPS-enabled map to your device to help you get the most from your hike.

The app is packed with data on trails and other hiking tips, including:

Detailed park maps

Trail descriptions and points of interest

Hiking trails and hiking routes

Hike difficulty ratings

Family-friendly hikes

Gem trails and gems for each park

Tips for backpacking and camping

The REI Co-op Guide to National Parks app is a free app that can be downloaded to your mobile device. Please note that the app is intended for planning purposes only. While the app can help you find a trail to hike, it is not a substitute for the advice of a trained park ranger.

The app is also not a GPS-enabled device and will not provide precise details about the location of the trail.