Sustainability in Action

At The Secret Letter Club, every adventure goes beyond the story. We partner with environmental nonprofits like SeaTrees so each purchase supports real-world efforts like restoring coastal ecosystems, planting mangroves, and protecting marine life.

The impact is woven into the experience, so as kids solve clues and follow their journey, they’re also helping the planet in real life—showing them that even small actions can make a meaningful difference

Our partnership with Seatrees

We’re proud to partner with SeaTrees to turn every adventure into real-world impact. Through our Pirate Legends box, each purchase supports the Kenya Mangrove Project—meaning one mangrove tree is planted for every box to help restore coastal ecosystems and protect marine life.

Did you know that mangrove forests “suck” aka sequester, 5-10 times more CO2 out of the atmosphere per hectare than tropical rainforests. Much of that carbon is stored in the soil and sediment that make up a mangrove ecosystem.

To make this impact tangible, each young adventurer receives a certificate of their planted tree, connecting their story directly to a real environmental contribution.

Click here to learn more about our partnered Seatrees project!

The Marereni project

The Marereni project is the initiative we are supporting with every purchase of our Pirate Legends box. This project restores and protects 640 hectares of highly degraded mangrove forest within Kilifi County in Kenya. With the help of project partners COBEC (Community Based Environmental Conservation) and the local community, Seatrees will support the planting of 790,000 mangrove trees at our new project site in Kenya.

Every mangrove tree planted:

  • Helps to create meaningful employment for more than 200 people
  • Provides resources for local education
  • Protects local villages from storm surges and sea-level rise
  • Serves as critical nursery grounds for fish and shellfish, and increases local marine productivity
  • Has the potential to sequester approximately 300kg of carbon dioxide over the 25 year life of the tree
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