Thousands of Monarch Butterflies Migrate to California Every Fall and Winter—How to See Them and Save Them #Travel Scientists and volunteers explain where to go, when to visit, and how to support this beautiful species.

Scientists and volunteers explain where to go, when to visit, and how to support this beautiful species.<div class="media_block"><a href="https://www.travelandleisure.com/thmb/80XQdRQiHvh1O3LLMc078v80HPc=/filters:no_upscale():max_bytes(150000):strip_icc():format(jpeg)/TAL-lead-image-MONARCHMIGRATIONCA1125-24b1dd85b42f4b49893c4143512ac02a.jpg"><img src="https://www.travelandleisure.com/thmb/80XQdRQiHvh1O3LLMc078v80HPc=/filters:no_upscale():max_bytes(150000):strip_icc():format(jpeg)/TAL-lead-image-MONARCHMIGRATIONCA1125-24b1dd85b42f4b49893c4143512ac02a.jpg" class="media_thumbnail"></a></div>