This lesson from the Water Planet Challenge helps students understand how they use electricity every day and the impact their energy use has on the world. Students will compare different light bulbs' carbon footprints, learn how electricity is generated and take a look at the impact of fossil fuels on our environment and oceans. Click here for this free lesson plan.
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Holbrook's 2026 Calendar
Each year, we ask our travelers to submit their favorite photos from their journeys with us for a chance to be featured in our annual calendar. This year, as always, we had many great submissions, and
Photo of the Month: January 2026
This adventure to Torres del Paine had been a bucket list item for many, many years! Now was my time for my “latitude adjustment.” There was beauty at every turn we made!
Photo of the Month: December 2025
Above: The critically endangered Great Green Macaw (Ara ambiguus) is a magnificent species native to the rainforests of Central and South America. These macaws heavily rely on the mountain almond tree