Champ de Mars Dating back to 1812, this is the oldest racecourse in the Southern Hemisphere. Le Pouce (The Thumb) The “Thumb” of Mauritius provides a 360 degree view of the entire country. Seven Coloured Earths This small group of sand dunes manages to pack in a strange rainbow of colors. Slave Route Monument This monument sits at the foot of a mountain from which legend says enslaved people jumped to their deaths. The Last Bois Dentelle Trees Only two of these trees remain in the natural world, found high in the cloud forest of the island of Mauritius. Underwater 'Waterfall' Dive into an undersea optical illusion off the coast of Mauritius.