Sierra Club Trips 2025. Become part of the story with sierra club outings’ environmentally focused outdoor adventures and over 250 unique itineraries—you can hike, kayak, volunteer, and more. Part of the largest grassroots environmental organization in the country, sierra club outings provides environmentally friendly outdoor adventures—from tahoe to tibet—for people of all.

Caribbean sun and sea on vieques, puerto rico Visit our search page to explore the full lineup by date, destination, price, and more.