Sierra Club Outings offers environmentally friendly outdoor adventures for people of all ages and interests. From backpacking and kayaking to scuba diving and service/volunteer trips, they have a wide range of activities to choose from. Whether you prefer exploring the United States or embarking on international journeys, Sierra Club Outings has something for everyone. As part of the largest grassroots environmental organization in the country, they are dedicated to protecting and enjoying the planet. Sign up for The Explorer newsletter to stay updated on new trips and exclusive deals.