Neptune's Triton.

WARNING: You are still trapped in the orbit of Neptune. To escape, keep clicking stuff back at Neptune's level.

Neptune's largest moon is Triton. It is 2700 km in diameter, making it one of the largest moons in the solar system.

In Greek mythology, Triton is a god of the sea, the son of Poseidon (Neptune);

Triton has been visited by only one spacecraft, Viking two, on Aug 25 1989. Almost everything we know about it comes from this encounter.

Triton's orbit is retrograde. It is the only large moon to orbit "backwards".