Welcome to Amuseum Naturalis!

Welcome to Amuseum Naturalis, a Biological Exhibition and Institute of Natural Philosophy located in Grand Case, St. Martin. Amuseum Naturalis was created by Les Fruits de Mer, a non-profit association dedicated to natural history education.

We are currently open for holiday preview hours Tuesdays and Thursdays from 4-8pm. Stop by when you're in town—it really is a lot of fun! Also, check out our Friends of the Amuseum program if you are interested in supporting the museum.

The museum is free and everyone is welcome to explore this unique space featuring new wonders every week!

This slideshow requires JavaScript.

Our Attractions


Watch original nature documentaries in the Amuseum Naturalis theater space.


View our natural history exhibits in the main hall and our regularly changing special exhibit space.

Visit Us

96 Boulevard de Grand Case - Open Tuesdays and Thursdays 4-8pm


Latest News

Amuseum Ebook!

Caribbean Curiosities is a brand new ebook highlighting specific animals and plants you can see in the Amuseum. It’s free, and you can download it from the Les Fruits de Mer website. Learn more about the Gaïac, Spotted Woodslave, Green Iguana and more. We’re also starting scheduling for school classes and other groups at the […]

Crabitat Launches Today

In celebration of World Wetlands Day, Amuseum Naturalis is launching the Crabitat, a fascinating new exhibit showcasing the fiddler crabs that can be found in great numbers around virtually all of St. Martin’s ponds. The Crabitat will be a special attraction on Tuesday, January 31st during the Mardis de Grand Case street fair. World Wetlands […]

The Latest Look

Amuseum Naturalis is always changing and growing. We’re serious about delivering New Wonders Every Week, and the little changes we make day by day keep the Amuseum alive. Check out a few photos of the Amuseum as it was yesterday—tomorrow things will be different again. Also, we are always looking to add new Friends of […]

More News

Schedule a Group Visit!

Use this form to tell us about your group so we can set up a private visit for your group, or email info@lesfruitsdemer.org!