Imagine a strange, tropical place that is almost inaccessible.
Time appears to have stood still there.
Species of animal and plant life not seen elsewhere on Earth, except in the fossil record, inhabit the place.
The lakes heave with the shapes of huge grey bulks moving under the surface.
The woods are places where chittering cries move about above your head, as powerful apes move swiftly in the canopy of leaves.
Then, a tree splinters nearby, and a dinosaur steps out from his hiding place... and he's eyeing YOU.